{"id":9013,"date":"2022-08-17T01:00:52","date_gmt":"2022-08-16T16:00:52","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=9013"},"modified":"2022-09-06T09:14:48","modified_gmt":"2022-09-06T00:14:48","slug":"newtons-second-law","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/newtons-second-law.html","title":{"rendered":"\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\uff1a\u516c\u5f0f\u3068\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u4f5c\u308a\u65b9"},"content":{"rendered":"\n<p>\u7269\u7406\u3067\u529b\u5b66\u3092\u5b66\u3076\u3068\u304d\u3001\u6700\u3082\u91cd\u8981\u306a\u5185\u5bb9\u306e\u4e00\u3064\u304c\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u3067\u3059\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u529b\u306e\u5411\u304d\u3084\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u304c\u308f\u304b\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5b66\u3076\u3068\u304d\u3001\u529b\u304c\u3064\u308a\u5408\u3063\u3066\u3044\u308b\u72b6\u614b\uff08\u52a0\u901f\u5ea6\u306e\u306a\u3044\u72b6\u614b\uff09\u3068\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308c\u308b\u72b6\u614b\uff08\u52a0\u901f\u5ea6\u304c\u3042\u308b\u72b6\u614b\uff09\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u306f\u8907\u6570\u306e\u529b\u3092\u5408\u7b97\u3055\u305b\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u308b\u4e8b\u5b9f\u3092\u5b66\u3076\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304d\u307e\u3057\u3087\u3046\u3002\u7269\u4f53\u304c\u4e00\u4f53\u5316\u3059\u308b\u30b1\u30fc\u30b9\u3084\u7cf8\u30fb\u3070\u306d\u3092\u5229\u7528\u3059\u308b\u30b1\u30fc\u30b9\u3001\u5b9a\u6ed1\u8eca\u30fb\u52d5\u6ed1\u8eca\u3092\u4f7f\u3046\u30b1\u30fc\u30b9\u306a\u3069\u3001\u5b9f\u969b\u306b\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u306b\u3088\u3063\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u4f5c\u308a\u65b9\u3092\u5b66\u3076\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002\u307e\u305f\u3001\u3069\u306e\u3088\u3046\u306b\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u529b\u5b66\u3067\u91cd\u8981\u306a\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u4f5c\u308a\u65b9\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u8cea\u91cf\u3068\u52a0\u901f\u5ea6\u3092\u304b\u3051\u308b\u3053\u3068\u3067\u529b\u3092\u5f97\u3089\u308c\u308b<\/h2>\n<p>\u307e\u305a\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u3068\u306f\u4f55\u304b\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3068\u306f\u3001\u4e00\u3064\u306e\u7269\u4f53\u306b\u5bfe\u3057\u3066\u6210\u308a\u7acb\u3064\u95a2\u4fc2\u5f0f\u3092\u6307\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u6559\u79d1\u66f8\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\( \\overrightarrow{F} =m \\overrightarrow{a} \\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg1.jpg\" alt=\"\" width=\"399\" height=\"180\" class=\"aligncenter size-full wp-image-9015\" 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\\overrightarrow{F} =m \\overrightarrow{a} \\)\u306e\u3088\u3046\u306b\u3001\u77e2\u5370\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u7269\u7406\u3067\u306f\u3001\u77e2\u5370\u306f\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u904b\u52d5\u65b9\u7a0b\u5f0f\u3067\u306f\u30d9\u30af\u30c8\u30eb\uff08\u529b\u306e\u5411\u304d\uff09\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001<span style=\"color: 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loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg2.jpg\" alt=\"\" width=\"428\" height=\"184\" class=\"aligncenter size-full wp-image-9016\" 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loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg4.jpg\" alt=\"\" width=\"477\" height=\"204\" class=\"aligncenter size-full wp-image-9018\" \/><\/p>\n<p>\u3053\u306e\u5834\u5408\u3001A\u3055\u3093\u306e\u307b\u3046\u304c\u529b\u306f\u5f37\u3044\u305f\u3081\u3001A\u3055\u3093\u306b\u3088\u308b\u529b\u304b\u3089B\u3055\u3093\u306b\u3088\u308b\u529b\u3092\u5f15\u304d\u3001\u529b\u306e\u5411\u304d\u306f\u53f3\u5074\u306b\u52a0\u308f\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u7bb1\u306f\u52a0\u901f\u5ea6\u3092\u4f34\u3063\u3066\u53f3\u5074\u306b\u9032\u3093\u3067\u3044\u304d\u307e\u3059\u3002\u307e\u305fA\u3055\u3093\u306b\u3088\u308b\u529b\u3068B\u3055\u3093\u306b\u3088\u308b\u529b\u306f\u540c\u3058\u5411\u304d\uff08B\u3055\u3093\u306e\u529b\u306f\u8ca0\u306a\u306e\u3067\u53cd\u5bfe\u5411\u304d\uff09\u3067\u3042\u308b\u305f\u3081\u3001\u30d9\u30af\u30c8\u30eb\u306e\u8db3\u3057\u7b97\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b\u3001\u6469\u64e6\u529b\u306e\u3042\u308b\u5e8a\u3067\u7bb1\u3092\u6ed1\u3089\u305b\u308b\u5834\u9762\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u53f3\u5411\u304d\u306b\u529b\u3092\u52a0\u3048\u308b\u5834\u5408\u3001\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u306b\u3088\u3063\u3066\u5de6\u5411\u304d\u306b\u6469\u64e6\u529b\u304c\u52a0\u308f\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg5.jpg\" alt=\"\" width=\"454\" height=\"194\" class=\"aligncenter size-full wp-image-9019\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u529b\u306e\u5927\u304d\u3055\u306f\u300c\u53f3\u5411\u304d\u306e\u529b\u306b\u5bfe\u3057\u3066\u3001\u6469\u64e6\u529b\u3092\u5f15\u304f\u300d\u3053\u3068\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b<span style=\"color: #0000ff;\">\u904b\u52d5\u65b9\u7a0b\u5f0f\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u529b\uff08\u52a0\u901f\u5ea6\uff09\u3068\u3044\u3046\u306e\u306f\u3001\u3059\u3079\u3066\u306e\u529b\u3092\u5408\u7b97\u3055\u305b\u308b\u3053\u3068\u3067\u8a08\u7b97\u3067\u304d\u308b\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<h3>\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u306e\u4f5c\u308a\u65b9<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306b\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u624b\u9806\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u7740\u76ee\u7269\u4f53\u3092\u6c7a\u3081\u3001\u7740\u76ee\u7269\u4f53\u306b\u50cd\u304f\u529b\u3092\u56f3\u306b\u8a18\u5165\u3059\u308b<\/li>\n<li>\u7269\u4f53\u306e\u904b\u52d5\u65b9\u5411\u3068\u5782\u76f4\u65b9\u6cd5\u306b\u529b\u3092\u5206\u89e3\u3059\u308b<\/li>\n<li>\u6b63\u306e\u5411\u304d\u3092\u6c7a\u3081\u3001\u529b\u3092\u5408\u7b97\u3055\u305b\u308b\u3053\u3068\u3067\\(\\overrightarrow{F}\\)\u3092\u6c42\u3081\u308b<\/li>\n<\/ol>\n<p>\u4f8b\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7bb1\u306b\u7cf8\u3092\u3064\u3051\u3001\u5e38\u306b\u5f35\u529bT\u3068\u306a\u308b\u3088\u3046\u306b\u7269\u4f53\u3092\u659c\u3081\u4e0a\u65b9\u5411\u306b\u5f15\u3063\u5f35\u308b\u5834\u9762\u3092\u8003\u3048\u307e\u3057\u3087\u3046\uff08\u6469\u64e6\u529b\u306f\u7121\u8996\u3057\u307e\u3059\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg6.jpg\" alt=\"\" width=\"318\" height=\"117\" class=\"aligncenter size-full wp-image-9020\" \/><\/p>\n<p>\u7740\u76ee\u7269\u4f53\u306f\u7bb1\u3067\u3042\u308a\u3001\u7bb1\u3068\u89e6\u308c\u3066\u3044\u308b\u90e8\u5206\uff08\u7cf8\u3068\u5e8a\uff09\u306b\u5bfe\u3057\u3066\u529b\u3092\u52a0\u3048\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u91cd\u529b\u3092\u56f3\u306b\u8a18\u8f09\u3059\u308b\u3053\u3068\u3067\u7bb1\u306b\u50cd\u304f\u3059\u3079\u3066\u306e\u529b\u3092\u8a18\u5165\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg7.jpg\" alt=\"\" width=\"326\" height=\"160\" class=\"aligncenter size-full wp-image-9021\" \/><\/p>\n<p>\u7cf8\u3092\u5f15\u3063\u5f35\u308b\u65b9\u5411\u306f\u53f3\u4e0a\u3067\u3059\u3002\u305f\u3060\u7269\u4f53\u304c\u53f3\u4e0a\u306b\u79fb\u52d5\u3059\u308b\u3053\u3068\u306f\u306a\u304f\u3001\u5730\u9762\u3068\u5e73\u884c\u306b\u53f3\u3078\u79fb\u52d5\u3057\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u4e0a\u56f3\u306e\u3088\u3046\u306b\u89d2\u5ea6\u3092\u5229\u7528\u3057\u3066\u5f35\u529b\\(T\\)\u3092\u5206\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4e0a\u56f3\u306e\u5834\u5408\u3001\u7269\u4f53\u304c\u79fb\u52d5\u3059\u308b\u5411\u304d\uff08\u6c34\u5e73\u65b9\u5411\uff09\u306b\u52a0\u308f\u3063\u3066\u3044\u308b\u529b\u306f\\(Tcos\u03b8\\)\u306e\u307f\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(F=Tcos\u03b8\\)\u3067\u3059\u3002\u307e\u305f\u8cea\u91cf\u306f\\(m\\)\u3067\u3042\u308b\u305f\u3081\u3001\u52a0\u901f\u5ea6\\(a\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308c\u307e\u3059\u3002<\/p>\n<p>\\(Tcos\u03b8=ma\\)<\/p>\n<p>\\(a=\\displaystyle\\frac{Tcos\u03b8}{m}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u52a0\u901f\u5ea6\\(a\\)\u306f\\(\\displaystyle\\frac{T\u00b7cos\u03b8}{m}\\)\u3068\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u30fb\u306a\u3081\u3089\u304b\u306a\u5e8a\u306e\u5834\u5408\u3001\u6469\u64e6\u529b\u306f\u30bc\u30ed<\/strong><\/p>\n<p>\u306a\u304a\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3068\u304d\u3001\u6469\u64e6\u529b\u304c\u50cd\u304f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u306a\u3081\u3089\u304b\u306a\u5e8a\u306b\u7269\u4f53\u3092\u7f6e\u304f\u5834\u5408\u3001\u6469\u64e6\u529b\u306f\u30bc\u30ed\u3067\u3059\u3002\u3057\u304b\u3057\u306a\u3081\u3089\u304b\u306a\u5e8a\u3067\u306f\u306a\u3044\u5834\u5408\u3001\u6469\u64e6\u529b\u3092\u8003\u616e\u3057\u3066\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5229\u7528\u3059\u308b\u7df4\u7fd2\u554f\u984c<\/h3>\n<p>\u3053\u3053\u307e\u3067\u89e3\u8aac\u3057\u305f\u5185\u5bb9\u3092\u7406\u89e3\u3057\u3066\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u3067\u8a08\u7b97\u554f\u984c\u3092\u89e3\u304d\u307e\u3057\u3087\u3046\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308a\u3001\u7b54\u3048\u3092\u5f97\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u306b\u306f\u3001\u4f55\u5ea6\u3082\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304f\u306e\u304c\u6700\u3082\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\u5730\u9762\u3068\u306e\u89d2\u5ea6\u304c\u03b8\u3067\u3042\u308b\u306a\u3081\u3089\u304b\u306a\u659c\u9762\u4e0a\u306b\u8cea\u91cf\\(m\\)\u306e\u7269\u4f53A\u3092\u7f6e\u304d\u307e\u3059\u3002\u7269\u4f53A\u3092\u7cf8\u3067\u3064\u306a\u304e\u3001\u6ed1\u8eca\u3092\u5229\u7528\u3057\u3066\u4e0b\u56f3\u306e\u3088\u3046\u306b\u8cea\u91cf\\(M\\)\u306e\u7269\u4f53B\u3068\u7cf8\u3092\u3064\u306a\u304e\u307e\u3059\u3002\u7269\u4f53B\u304c\u925b\u76f4\u4e0b\u5411\u304d\u3067\u52d5\u304f\u3068\u304d\u30012\u3064\u306e\u7269\u4f53\u306e\u52a0\u901f\u5ea6\\(a\\)\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001\u91cd\u529b\u52a0\u901f\u5ea6\\(g\\)\u306f\u3067\u3059\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg9.jpg\" alt=\"\" width=\"421\" height=\"161\" class=\"aligncenter size-full wp-image-9023\" \/><\/p>\n<p>\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u305f\u3081\u3001\u7269\u4f53A\u3068\u7269\u4f53B\u306b\u7740\u76ee\u3057\u3001\u305d\u308c\u305e\u308c\u3067\u529b\u3092\u56f3\u306b\u52a0\u3048\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg10.jpg\" alt=\"\" width=\"454\" height=\"219\" class=\"aligncenter size-full wp-image-9024\" \/><\/p>\n<p>\u7269\u4f53A\u3068\u7269\u4f53B\u304c\u9759\u6b62\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u529b\u304c\u3064\u308a\u5408\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u540c\u3058\u30d9\u30af\u30c8\u30eb\u306e\u529b\u3092\u8db3\u3057\u30660\u306b\u306a\u308b\u3088\u3046\u306b\u5f0f\u3092\u4f5c\u308c\u3070\u3044\u3044\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u904b\u52d5\u65b9\u7a0b\u5f0f\u3067\u306f\u3001\u7269\u4f53\u306b\u529b\u304c\u52a0\u308f\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u52a0\u901f\u5ea6\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u7269\u4f53A\u306b\u52a0\u308f\u308b\u529b\\(F_A=ma\\)\u3068\u7269\u4f53B\u306b\u52a0\u308f\u308b\u529b\\(F_B=ma\\)\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002\u524d\u8ff0\u306e\u901a\u308a\u3001\u7269\u4f53\u306e\u904b\u52d5\u65b9\u5411\u3068\u540c\u3058\u5411\u304d\u306e\u529b\u3092\u5408\u7b97\u3055\u305b\u308b\u3068\u3001\u904b\u52d5\u65b9\u5411\u306e\u529b\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7269\u4f53A\u306e\u529b\uff08\u659c\u9762\u65b9\u5411\uff09\uff1a\\(ma=T-mg\u00b7sin\u03b8\\)<\/li>\n<li>\u7269\u4f53B\u306e\u529b\uff08\u659c\u9762\u65b9\u5411\uff09\uff1a\\(Ma=Mg-T\\)<\/li>\n<\/ul>\n<p>\u3053\u3046\u3057\u3066\u30012\u3064\u306e\u7269\u4f53\u306b\u3064\u3044\u3066\u305d\u308c\u305e\u308c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u306a\u304a2\u3064\u306e\u7269\u4f53\u306e\u52a0\u901f\u5ea6\u306f\u540c\u3058\u3067\u3042\u308b\u305f\u3081\u30012\u3064\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5229\u7528\u3057\u3066\u52a0\u901f\u5ea6\\(a\\)\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(Ma=Mg-T\\)<\/p>\n<p>\\(T=Mg-Ma\\)<\/p>\n<p>\\(T=Mg-Ma\\)\u3092\\(ma=T-mg\u00b7sin\u03b8\\)\u3078\u4ee3\u5165\u3059\u308b\u3002<\/p>\n<p>\\(ma=Mg-Ma-mg\u00b7sin\u03b8\\)<\/p>\n<p>\\(a(m+M)=(M-m\u00b7sin\u03b8)g\\)<\/p>\n<p>\\(a=\\displaystyle\\frac{(M-m\u00b7sin\u03b8)g}{m+M}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u306b\u3088\u308a\u3001\\(a=\\displaystyle\\frac{(M-m\u00b7sin\u03b8)g}{m+M}\\)\u3068\u8a08\u7b97\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>2\u3064\u306e\u7269\u4f53\u304c\u4e00\u4f53\u5316\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u304c\u50cd\u304f<\/h2>\n<p>\u5148\u307b\u3069\u306f\u975e\u5e38\u306b\u5358\u7d14\u306a\u30b1\u30fc\u30b9\u306e\u7df4\u7fd2\u554f\u984c\u3092\u89e3\u304d\u307e\u3057\u305f\u3002\u305f\u3060\u904b\u52d5\u65b9\u7a0b\u5f0f\u3067\u306f\u3001\u3088\u308a\u8907\u96d1\u306a\u554f\u984c\u3092\u89e3\u304b\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u305d\u306e\u4e00\u3064\u306b\u30012\u3064\u306e\u7269\u4f53\u304c\u4e00\u4f53\u5316\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\u306a\u3081\u3089\u304b\u306a\u5e8a\u3067\u8cea\u91cf\\(m\\)\u306e\u7269\u4f53\u3068\u8cea\u91cf\\(M\\)\u306e\u7269\u4f53\u3092\u304f\u3063\u3064\u3051\u3001\u529b\\(F\\)\u3092\u5e38\u306b\u52a0\u3048\u307e\u3059\u30022\u3064\u306e\u7269\u4f53\u306e\u52a0\u901f\u5ea6\\(a\\)\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg15.jpg\" alt=\"\" width=\"408\" height=\"185\" class=\"aligncenter size-full wp-image-9029\" \/><\/p>\n<p>2\u3064\u306e\u7269\u4f53\u306f\u304f\u3063\u3064\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u7269\u4f53\u306f\u4e00\u65b9\u306e\u7269\u4f53\u3092\u62bc\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3068\u540c\u6642\u306b\u3001\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u306b\u3088\u3063\u3066\u3001\u62bc\u3055\u308c\u3066\u3044\u308b\u7269\u4f53\u3082\u53cd\u5bfe\u65b9\u5411\u306e\u529b\u3067\u62bc\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7269\u4f53\u304c\u4e00\u65b9\u306e\u7269\u4f53\u3092\u62bc\u3059\u529b\u3092\\(f\\)\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u305d\u306e\u5834\u5408\u3001\u305d\u308c\u305e\u308c\u306e\u7269\u4f53\u306b\u3064\u3044\u3066\u529b\u306e\u50cd\u304d\u3092\u56f3\u306b\u8a18\u5165\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg16.jpg\" alt=\"\" width=\"600\" height=\"160\" class=\"aligncenter size-full wp-image-9030\" \/><\/p>\n<p>\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u306b\u3088\u308a\u3001\u300c\u7269\u4f53M\u304c\u7269\u4f53m\u3092\u62bc\u3059\u529b\\(f\\)\u300d\u3068\u300c\u7269\u4f53m\u304c\u7269\u4f53M\u3092\u62bc\u3059\u529b\\(f\\)\u300d\u306f\u540c\u3058\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u7269\u4f53\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7269\u4f53M\u306b\u7740\u76ee\uff1a\\(Ma=F-f\\)<\/li>\n<li>\u7269\u4f53m\u306b\u7740\u76ee\uff1a\\(ma=f\\)<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\\(Ma=F-f\\)\u306b\\(ma=f\\)\u3092\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(Ma=F-f\\)<\/p>\n<p>\\(Ma=F-ma\\)<\/p>\n<p>\\(F=(M+m)a\\)<\/p>\n<p>\\(F=(M+m)a\\)\u3068\u306a\u308b\u3053\u3068\u304b\u3089\u308f\u304b\u308b\u901a\u308a\u3001\u300c\u7269\u4f53\u304c\u304f\u3063\u3064\u3044\u3066\u3044\u308b\u3068\u304d\u3001\u529b\\(F\\)\u306f2\u3064\u306e\u7269\u4f53\u306e\u8cea\u91cf\u3092\u8db3\u3057\u305f\u5f8c\u306b\u52a0\u901f\u5ea6\u3092\u304b\u3051\u308c\u3070\u3044\u3044\u300d\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308b\u3068\u3001<span style=\"color: #0000ff;\">\u304f\u3063\u3064\u3044\u3066\u3044\u308b2\u3064\u306e\u7269\u4f53\u30921\u3064\u306e\u7269\u4f53\u3068\u307f\u306a\u3057\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg17.jpg\" alt=\"\" width=\"419\" height=\"254\" class=\"aligncenter size-full wp-image-9031\" \/><\/p>\n<p>\u901a\u5e38\u3001\u7570\u306a\u308b\u7269\u4f53\u306f\u5225\u3005\u306b\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u305f\u3060\u4e00\u4f53\u5316\u3057\u3066\u3044\u308b\u7269\u4f53\u306e\u5834\u5408\u3001\u4f8b\u5916\u7684\u306b\u8cea\u91cf\u3092\u8db3\u3059\u3053\u3068\u3067\u540c\u3058\u7269\u8cea\u3068\u307f\u306a\u3057\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u7cf8\u3084\u3070\u306d\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f<\/h3>\n<p>\u6b21\u306b\u3001\u7cf8\u3084\u3070\u306d\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u7acb\u3066\u65b9\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u7cf8\u3084\u3070\u306d\u3092\u5229\u7528\u3057\u30662\u3064\u306e\u7269\u4f53\u3092\u3064\u306a\u3050\u5834\u5408\u3001\u5fc5\u305a\u7cf8\u306e\u5f35\u529b\\(T\\)\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5fc5\u305a\u3070\u306d\u306e\u5f3e\u6027\u529b\\(kx\\)\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg11.jpg\" alt=\"\" width=\"527\" height=\"223\" class=\"aligncenter size-full wp-image-9025\" \/><\/p>\n<p>2\u3064\u306e\u7269\u4f53\u306b\u50cd\u304f\u7cf8\u306e\u5f35\u529b\u306f\\(T&#8217;=T\\)\u3068\u306a\u308a\u307e\u3059\u3057\u30012\u3064\u306e\u7269\u4f53\u306b\u50cd\u304f\u3070\u306d\u306e\u5f3e\u6027\u529b\u306f\u4e21\u65b9\u3068\u3082\\(kx\\)\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7cf8\u3084\u3070\u306d\u306e\u8cea\u91cf\u3092\u7121\u8996\u3067\u304d\u308b\u5834\u5408\u3001\u5f35\u529b\u3084\u5f3e\u6027\u529b\u306f\u540c\u3058\u3067\u3042\u308b\u305f\u3081\u3001\u529b\u306f\u4e92\u3044\u306b\u6253\u3061\u6d88\u3057\u5408\u3046\u3053\u3068\u3067\u30bc\u30ed\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u30012\u3064\u306e\u7269\u4f53\u304c\u304f\u3063\u3064\u3044\u3066\u3044\u308b\u72b6\u614b\u3068\u540c\u3058\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u56f3\u3092\u63cf\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg18.jpg\" alt=\"\" width=\"526\" height=\"337\" class=\"aligncenter size-full wp-image-9032\" \/><\/p>\n<p>2\u3064\u306e\u7269\u4f53\u306e\u8cea\u91cf\u304c\u305d\u308c\u305e\u308cM\u3068m\u306e\u5834\u5408\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u306f\\(F=(M+m)a\\)\u3068\u306a\u308a\u307e\u3059\u3002\u7269\u4f53\u306e\u9593\u306b\u7cf8\u3084\u3070\u306d\u304c\u3042\u3063\u3066\u3082\u3001\u7121\u8996\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>\u5b9a\u6ed1\u8eca\u3068\u52d5\u6ed1\u8eca\u306e\u6027\u8cea\uff1a\u6ed1\u8eca\u306b\u50cd\u304f\u529b<\/h3>\n<p>\u904b\u52d5\u65b9\u7a0b\u5f0f\u3067\u306f\u6ed1\u8eca\u3092\u5229\u7528\u3059\u308b\u554f\u984c\u3082\u3072\u3093\u3071\u3093\u306b\u51fa\u3055\u308c\u307e\u3059\u3002\u6ed1\u8eca\u306b\u306f\u7a2e\u985e\u304c\u3042\u308a\u3001\u5b9a\u6ed1\u8eca\u3068\u52d5\u6ed1\u8eca\u304c\u3042\u308a\u307e\u3059\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3068\u304d\u3001\u5b9a\u6ed1\u8eca\u3068\u52d5\u6ed1\u8eca\u306e\u7279\u5fb4\u3092\u4e8b\u524d\u306b\u5b66\u3070\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f4d\u7f6e\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u6ed1\u8eca\u304c\u5b9a\u6ed1\u8eca\u3067\u3059\u3002\u5b9a\u6ed1\u8eca\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u529b\u306e\u5927\u304d\u3055\u306f\u540c\u3058\u3067\u3059\u3002\u307e\u305f\u7269\u4f53\u30921m\u5f15\u304d\u4e0a\u3052\u308b\u5834\u5408\u3001\u3042\u306a\u305f\u304c\u5f15\u3063\u5f35\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u3072\u3082\u306e\u9577\u3055\u306f1m\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg19.jpg\" alt=\"\" width=\"212\" height=\"253\" class=\"aligncenter size-full wp-image-9033\" \/><\/p>\n<p>\u305d\u308c\u306b\u5bfe\u3057\u3066\u52d5\u6ed1\u8eca\u306f\u52d5\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u52d5\u6ed1\u8eca\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u5929\u4e95\u304c\u534a\u5206\u306e\u91cd\u3055\u3092\u652f\u3048\u3066\u3044\u308b\u305f\u3081\u3001\u3042\u306a\u305f\u304c\u52d5\u6ed1\u8eca\u306b\u52a0\u3048\u308b\u3079\u304d\u529b\u306f\u534a\u5206\u3067\u6e08\u307f\u307e\u3059\u3002\u305f\u3060\u3057\u52d5\u6ed1\u8eca\u306f\u52d5\u304f\u305f\u3081\u3001\u4f8b\u3048\u3070\u7269\u4f53\u30921m\u4e0a\u6607\u3055\u305b\u308b\u305f\u3081\u306b\u306f\u3001\u3042\u306a\u305f\u306f2m\u3092\u5f15\u3063\u5f35\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg20.jpg\" alt=\"\" width=\"481\" height=\"346\" class=\"aligncenter size-full wp-image-9034\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u5b9a\u6ed1\u8eca\u3068\u52d5\u6ed1\u8eca\u3067\u306f\u3001\u5fc5\u8981\u306a\u529b\u3084\u5f15\u3063\u5f35\u308b\u8ddd\u96e2\u306b\u9055\u3044\u304c\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"background-color: #fffddb;\"><\/td>\n<td style=\"text-align: center; background-color: #fffddb;\"><strong>\u5b9a\u6ed1\u8eca<\/strong><\/td>\n<td style=\"text-align: center; background-color: #fffddb;\"><strong>\u52d5\u6ed1\u8eca<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\u529b\u306e\u5927\u304d\u3055<\/td>\n<td style=\"text-align: center;\">\u5909\u308f\u3089\u306a\u3044<\/td>\n<td style=\"text-align: center;\">\\(\\displaystyle\\frac{1}{2}\\)\u500d<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\u5f15\u3063\u5f35\u308b\u8ddd\u96e2<\/td>\n<td style=\"text-align: center;\">\u5909\u308f\u3089\u306a\u3044<\/td>\n<td style=\"text-align: center;\">2\u500d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u9055\u3044\u3092\u77e5\u3063\u3066\u3044\u306a\u3044\u3068\u3001\u7269\u7406\u3067\u6ed1\u8eca\u3092\u542b\u3080\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u5fc5\u305a\u5b9a\u6ed1\u8eca\u3068\u52d5\u6ed1\u8eca\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\u6469\u64e6\u304c\u306a\u304f\u3001\u91cd\u3055\u3092\u7121\u8996\u3067\u304d\u308b\u6ed1\u8eca\u3092\u5229\u7528\u3057\u3001\u8cea\u91cf\\(m\\)\u3068\u8cea\u91cf\\(M\\)\u306e\u91cd\u308a\u3092\u4e0b\u56f3\u306e\u3088\u3046\u306b\u3064\u308b\u3057\u307e\u3059\u3002\u306a\u304a\\(M&gt;2m\\)\u3067\u3042\u308a\u3001\u91cd\u529b\u52a0\u901f\u5ea6\u306f\\(g\\)\u3067\u3059\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/dvsg21.jpg\" alt=\"\" width=\"211\" height=\"297\" class=\"aligncenter size-full wp-image-9035\" \/><\/p>\n<ol>\n<li>\u7269\u4f53M\u306e\u52a0\u901f\u5ea6\\(a_M\\)\u3068\u7269\u4f53m\u306e\u52a0\u901f\u5ea6\\(a_m\\)\u306e\u95a2\u4fc2\u3092\u8a18\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<li>\u7269\u4f53M\u3068\u7269\u4f53m\u306e\u52a0\u901f\u5ea6\u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ol>\n<p><strong>1) \u7269\u4f53M\u306e\u52a0\u901f\u5ea6\\(a_M\\)\u3068\u7269\u4f53m\u306e\u52a0\u901f\u5ea6\\(a_m\\)\u306e\u95a2\u4fc2\u3092\u8a18\u3057\u307e\u3057\u3087\u3046<\/strong><\/p>\n<p>\u7269\u4f53M\u304c\u8ddd\u96e2\\(x\\)\u3092\u52d5\u304f\u5834\u5408\u3001\u7269\u4f53m\u306f\u8ddd\u96e2\\(2x\\)\u3092\u52d5\u304d\u307e\u3059\u3002\u52d5\u6ed1\u8eca\u3092\u52d5\u304b\u3059\u305f\u3081\u306b\u306f\u3001\u524d\u8ff0\u306e\u901a\u308a\u305d\u306e2\u500d\u306e\u3072\u3082\u3092\u52d5\u304b\u3059\u5fc5\u8981\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u7b49\u52a0\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff08\u521d\u901f\u5ea6\\(v_0=0\\)\uff09\u3002<\/p>\n<ul>\n<li>\u7269\u4f53M\uff1a\\(x=\\displaystyle\\frac{1}{2}a_Mt^2\\)<\/li>\n<li>\u7269\u4f53m\uff1a\\(2x=\\displaystyle\\frac{1}{2}a_mt^2\\)<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\\(x=\\displaystyle\\frac{1}{2}a_Mt^2\\)\u3092\\(2x=\\displaystyle\\frac{1}{2}a_mt^2\\)\u3078\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(a_Mt^2=\\displaystyle\\frac{1}{2}a_mt^2\\)<\/p>\n<p>\\(2a_M=a_m\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\\(2a_M=a_m\\)\u306b\u306a\u308b\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u52a0\u901f\u5ea6\\(a_M\\)\u30922\u500d\u3059\u308b\u3068\u3001\u52a0\u901f\u5ea6\\(a_m\\)\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><strong>2) \u7269\u4f53M\u3068\u7269\u4f53m\u306e\u52a0\u901f\u5ea6\u3092\u6c42\u3081\u307e\u3057\u3087\u3046<\/strong><\/p>\n<p>\\(M&gt;2m\\)\u3067\u3042\u308b\u305f\u3081\u3001\u7269\u4f53M\u306f\u925b\u76f4\u4e0b\u5411\u304d\u306b\u52a0\u901f\u3057\u3001\u7269\u4f53m\u306f\u925b\u76f4\u4e0a\u5411\u304d\u306b\u52a0\u901f\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u7269\u4f53M\u3001\u7269\u4f53m\u3001\u52d5\u6ed1\u8eca\u306b\u3064\u3044\u3066\u3001\u305d\u308c\u305e\u308c\u306b\u50cd\u304f\u529b\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u56f3\u306b\u8a18\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/08\/yuu4.jpg\" alt=\"\" width=\"314\" height=\"414\" class=\"aligncenter size-full wp-image-9520\" \/><\/p>\n<p>\u3053\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7269\u4f53M\uff1a\\(Ma_M=Mg-T_1\\)<\/li>\n<li>\u7269\u4f53m\uff1a\\(ma_m=T_2-mg\\)<\/li>\n<li>\u52d5\u6ed1\u8eca\uff1a\\(T_1=2T_2\\)<\/li>\n<\/ul>\n<p>\u306a\u304a\u3001\\(Ma_M=T_1-Mg\\)\u3068\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u7269\u4f53M\u306f\u4e0b\u5411\u304d\u306b\u52a0\u901f\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002\u540c\u69d8\u306b\u3001\\(ma_M=mg-T_2\\)\u3068\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u7269\u4f53m\u306f\u4e0a\u5411\u304d\u306b\u52a0\u901f\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u7269\u7406\u3067\u306f\u3001\u5b9f\u969b\u306b\u7269\u4f53\u304c\u52d5\u3044\u3066\u3044\u308b\u5834\u9762\u3092\u60f3\u50cf\u3057\u306a\u3051\u308c\u3070\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u4e8b\u524d\u306b\u7269\u4f53\u304c\u3069\u3061\u3089\u306b\u52d5\u304f\u306e\u304b\u628a\u63e1\u3057\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\\(T_1=2T_2\\)\u3092\\(Ma_M=Mg-T_1\\)\u306b\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(Ma_M=Mg-T_1\\)<\/p>\n<p>\\(Ma_M=Mg-2T_2\\)<\/p>\n<p>\\(2T_2=Mg-Ma_M\\)<\/p>\n<p>\u6b21\u306b\\(ma_m=T_2-mg\\)\u30922\u500d\u3057\u3066\u3001\\(2T_2=Mg-Ma_M\\)\u3092\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(ma_m=T_2-mg\\)<\/p>\n<p>\\(2ma_m=2T_2-2mg\\)<\/p>\n<p>\\(2ma_m=Mg-Ma_M-2mg\\)<\/p>\n<p>\u306a\u304a\\(2a_M=a_m\\)\u3067\u3042\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\\(2ma_m=Mg-Ma_M-2mg\\)<\/p>\n<p>\\(4ma_M=Mg-Ma_M-2mg\\)<\/p>\n<p>\\(4ma_M+Ma_M=Mg-2mg\\)<\/p>\n<p>\\(a_M(4m+M)=g(M-2m)\\)<\/p>\n<p>\\(a_M=\\displaystyle\\frac{g(M-2m)}{4m+M}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\\(a_M=\\displaystyle\\frac{g(M-2m)}{4m+M}\\)\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u307e\u305f\u7269\u4f53m\u306e\u52a0\u901f\u5ea6\u306f\u7269\u4f53M\u306e\u52a0\u901f\u5ea6\u306e2\u500d\u3067\u3042\u308b\u305f\u3081\u3001\\(a_m=\\displaystyle\\frac{2g(M-2m)}{4m+M}\\)\u3067\u3059\u3002<\/p>\n<h2>\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u306e\u4f5c\u308a\u65b9\u3092\u5b66\u3076<\/h2>\n<p>\u529b\u5b66\u3067\u6700\u3082\u91cd\u8981\u306a\u5185\u5bb9\u306e\u4e00\u3064\u304c\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u3067\u3059\u3002\u7269\u4f53\u304c\u52d5\u3044\u3066\u3044\u308b\u3068\u304d\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f7f\u3046\u3053\u3068\u3067\u5f0f\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002\u7269\u4f53\u304c\u3064\u308a\u5408\u3063\u3066\u3044\u308b\u3068\u304d\u3068\u306f\u7570\u306a\u308a\u3001\u52a0\u901f\u5ea6\u304c\u52a0\u308f\u3063\u3066\u3044\u308b\u72b6\u614b\u3067\u3042\u308c\u3070\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u529b\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u529b\u306e\u5411\u304d\u3068\u52a0\u901f\u5ea6\u306e\u5411\u304d\u304c\u540c\u3058\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308b\u3068\u304d\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u554f\u984c\u3092\u89e3\u304d\u307e\u3057\u3087\u3046\u30022\u3064\u306e\u7269\u4f53\u304c\u7cf8\u3067\u3064\u306a\u304c\u3063\u3066\u3044\u305f\u308a\u3001\u6ed1\u8eca\u3092\u5229\u7528\u3057\u3066\u3044\u305f\u308a\u3059\u308b\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u306b\u3088\u3063\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u7269\u4f53\u304c\u52d5\u3044\u3066\u3044\u308b\u3068\u304d\u306e\u6027\u8cea\u3092\u5b66\u3073\u3001\u305d\u308c\u305e\u308c\u306e\u7269\u4f53\u306b\u7740\u76ee\u3057\u3066\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308a\u307e\u3057\u3087\u3046\u3002\u5b9f\u969b\u306b\u554f\u984c\u3092\u3044\u304f\u3064\u3082\u89e3\u304f\u3053\u3068\u306b\u3088\u308a\u3001\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u4f5c\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7269\u7406\u3067\u529b\u5b66\u3092\u5b66\u3076\u3068\u304d\u3001\u6700\u3082\u91cd\u8981\u306a\u5185\u5bb9\u306e\u4e00\u3064\u304c\u904b\u52d5\u65b9\u7a0b\u5f0f\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u7b2c\u4e8c\u6cd5\u5247\uff09\u3067\u3059\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u529b\u306e\u5411\u304d\u3084\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u304c\u308f\u304b\u308b\u306e\u3067\u3059\u3002 \u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u5b66\u3076\u3068\u304d\u3001\u529b\u304c\u3064\u308a\u5408\u3063\u3066\u3044\u308b\u72b6\u614b\uff08\u52a0\u901f\u5ea6\u306e\u306a\u3044\u72b6\u614b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9040,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":{"0":"post-9013","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physics-2"},"_links":{"self":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/9013","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/comments?post=9013"}],"version-history":[{"count":8,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/9013\/revisions"}],"predecessor-version":[{"id":9527,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/9013\/revisions\/9527"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media\/9040"}],"wp:attachment":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media?parent=9013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/categories?post=9013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/tags?post=9013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}