{"id":154,"date":"2026-10-04T19:06:21","date_gmt":"2026-10-04T10:06:21","guid":{"rendered":"https:\/\/jinnai.work\/?p=154"},"modified":"2026-10-04T19:06:21","modified_gmt":"2026-10-04T10:06:21","slug":"%e4%b8%8b%e6%89%8b%e6%8a%95%e3%81%92%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%aa%e3%83%aa%e3%83%bc%e3%82%b9%e3%83%9d%e3%82%a4%e3%83%b3%e3%83%88%e3%81%ae1cm%e3%81%ae%e3%81%9a%e3%82%8c%e3%81%8c","status":"publish","type":"post","link":"https:\/\/jinnai.work\/?p=154","title":{"rendered":"\u4e0b\u624b\u6295\u3052\u306b\u304a\u3051\u308b\u30ea\u30ea\u30fc\u30b9\u30dd\u30a4\u30f3\u30c8\u306e1cm\u306e\u305a\u308c\u304c\u7740\u5730\u70b9\u306b\u4e0e\u3048\u308b\u5f71\u97ff \u2015 \u30e2\u30eb\u30c3\u30af\u306e\u6295\u64f2\u3092\u60f3\u5b9a\u3057\u305f\u5f3e\u9053\u30e2\u30c7\u30eb\u306b\u3088\u308b\u8a66\u7b97"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">2026\u5e7410\u67084\u65e5 \u00b7 @jin<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8981\u65e8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u624b\u6295\u3052\u3067\u68d2\u3092\u653e\u3064\u3068\u304d\u3001\u8155\u306e\u5f27\u306b\u6cbf\u3063\u3066\u30ea\u30ea\u30fc\u30b9\u304c1cm\u305a\u308c\u308b\u3068\u3001\u4ef0\u89d230\u00b0\u306e\u6295\u64f2\u3067\u306f\u7740\u5730\u70b9\u304c3.5m\u3067\u7d044cm\u300111m\u3067\u7d0415cm\u305a\u308c\u308b\u3002\u4e00\u65b9\u3001\u4ef0\u89d245\u00b0\u3067\u306f\u540c\u3058\u305a\u308c\u306b\u3088\u308b\u8aa4\u5dee\u306f\u5168\u8ddd\u96e2\u30671cm\u672a\u6e80\u306b\u3068\u3069\u307e\u308b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7a3f\u306f\u3001\u30e2\u30eb\u30c3\u30af\u306e\u6295\u64f2\u68d2\uff08\u9577\u3055\u7d0420cm\uff09\u3092\u6a2a\u306b\u6301\u3063\u3066\u4e0b\u624b\u6295\u3052\u3059\u308b\u5834\u9762\u3092\u60f3\u5b9a\u3057\u3001\u8155\u3092\u525b\u4f53\u632f\u308a\u5b50\u3068\u307f\u306a\u3057\u305f\u5f3e\u9053\u30e2\u30c7\u30eb\u3067\u8aa4\u5dee\u3092\u8a66\u7b97\u3057\u305f\u3002\u8aa4\u5dee\u306e\u4e3b\u56e0\u306f\u30ea\u30ea\u30fc\u30b9\u4f4d\u7f6e\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u305d\u308c\u306b\u4f34\u3046\u767a\u5c04\u89d2\u306e\u5909\u5316\uff08\u7d040.8\u00b0\uff09\u3067\u3042\u308b\u3002\u7d50\u679c\u306f\u3001\u5c71\u306a\u308a\u306e\u6295\u64f2\u307b\u3069\u30ea\u30ea\u30fc\u30b9\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u3076\u308c\u306b\u5f37\u3044\u3053\u3068\u3092\u793a\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7814\u7a76\u306e\u554f\u3044\u306f\u300c\u30ea\u30ea\u30fc\u30b9\u30dd\u30a4\u30f3\u30c8\u304c1cm\u9055\u3046\u3068\u3001\u7740\u5730\u70b9\u306f\u3069\u308c\u3060\u3051\u305a\u308c\u308b\u304b\u300d\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e2\u30eb\u30c3\u30af\u3067\u306f\u3001\u6295\u64f2\u68d2\u3092\u4e0b\u624b\u6295\u3052\u3067\u653e\u3061\u30013.5m\u4ee5\u4e0a\u5148\u306e\u30b9\u30ad\u30c3\u30c8\u30eb\u3092\u72d9\u3046\u3002\u8a66\u5408\u304c\u9032\u3080\u3068\u30b9\u30ad\u30c3\u30c8\u30eb\u306f\u6563\u3089\u3070\u308a\u300110m\u524d\u5f8c\u306e\u8ddd\u96e2\u3092\u6295\u3052\u308b\u5834\u9762\u3082\u751f\u3058\u308b\u3002\u30d7\u30ec\u30a4\u30e4\u30fc\u306f\u7d4c\u9a13\u7684\u306b\u300c\u9060\u304f\u307b\u3069\u30ea\u30ea\u30fc\u30b9\u306e\u3076\u308c\u304c\u97ff\u304f\u300d\u3068\u611f\u3058\u3066\u3044\u308b\u304c\u3001\u305d\u306e\u5927\u304d\u3055\u3092\u6570\u5024\u3067\u793a\u3057\u305f\u4f8b\u306f\u5c11\u306a\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7a3f\u3067\u306f\u3001\u8ddd\u96e23.5m\u304a\u3088\u30734m\u304b\u308911m\u307e\u30671m\u523b\u307f\u306e\u8a089\u5730\u70b9\u306b\u3064\u3044\u3066\u30011cm\u306e\u30ea\u30ea\u30fc\u30b9\u306e\u305a\u308c\u304c\u751f\u3080\u7740\u5730\u8aa4\u5dee\u3092\u8a66\u7b97\u3059\u308b\u3002\u3042\u308f\u305b\u3066\u3001\u6295\u64f2\u306e\u4ef0\u89d2\u306b\u3088\u3063\u3066\u8aa4\u5dee\u304c\u3069\u3046\u5909\u308f\u308b\u304b\u3092\u6bd4\u8f03\u3059\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u30e2\u30c7\u30eb\u3068\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u4eee\u5b9a<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\u9805\u76ee<\/th><th>\u8a2d\u5b9a\u5024<\/th><\/tr><tr><td>\u8155\u306e\u56de\u8ee2\u534a\u5f84 R\uff08\u80a9\u301c\u63e1\u308a\uff09<\/td><td>0.70 m<\/td><\/tr><tr><td>\u30ea\u30ea\u30fc\u30b9\u9ad8\u3055 h\u2080<\/td><td>0.60 m<\/td><\/tr><tr><td>\u57fa\u6e96\u306e\u4ef0\u89d2 \u03b8<\/td><td>30\u00b0\u300145\u00b0<\/td><\/tr><tr><td>\u30ea\u30ea\u30fc\u30b9\u306e\u305a\u308c \u0394s\uff08\u8155\u306e\u5f27\u306b\u6cbf\u3063\u3066\uff09<\/td><td>1 cm\uff08\u9045\u3044\u30ea\u30ea\u30fc\u30b9\uff09<\/td><\/tr><tr><td>\u91cd\u529b\u52a0\u901f\u5ea6 g<\/td><td>9.81 m\/s\u00b2<\/td><\/tr><tr><td>\u7a7a\u6c17\u62b5\u6297\u30fb\u68d2\u306e\u56de\u8ee2<\/td><td>\u7121\u8996<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u632f\u308a\u5b50\u30e2\u30c7\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8155\u306f\u80a9\u3092\u4e2d\u5fc3\u306b\u4e00\u5b9a\u306e\u89d2\u901f\u5ea6\u3067\u56de\u308b\u525b\u4f53\u632f\u308a\u5b50\u3068\u3059\u308b\u3002\u3053\u306e\u3068\u304d\u624b\u306e\u901f\u5ea6\u306f\u8155\u306b\u76f4\u4ea4\u3059\u308b\u305f\u3081\u3001\u767a\u5c04\u89d2\u306f\u8155\u304c\u925b\u76f4\u304b\u3089\u524d\u65b9\u3078\u50be\u3044\u305f\u89d2\u5ea6\u306b\u7b49\u3057\u3044\u3002\u30ea\u30ea\u30fc\u30b9\u304c\u5f27\u306b\u6cbf\u3063\u3066 \u0394s \u9045\u308c\u308b\u3068\u3001\u767a\u5c04\u89d2\u306f\u6b21\u306e\u5206\u3060\u3051\u5927\u304d\u304f\u306a\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\\Delta\\theta = \\frac{\\Delta s}{R} = \\frac{0.01}{0.70} \\approx 0.0143\\ \\mathrm{rad} \\approx 0.82^\\circ<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6642\u306b\u30ea\u30ea\u30fc\u30b9\u4f4d\u7f6e\u3082\u524d\u65b9\u3078 \u0394s\u00b7cos\u03b8\u3001\u4e0a\u65b9\u3078 \u0394s\u00b7sin\u03b8 \u3060\u3051\u79fb\u52d5\u3059\u308b\u3002\u901f\u3055 v \u306f\u89d2\u901f\u5ea6\u4e00\u5b9a\u306e\u4eee\u5b9a\u304b\u3089\u5909\u308f\u3089\u306a\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 \u8a08\u7b97\u624b\u9806<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7740\u5730\u8ddd\u96e2\u306f\u3001\u9ad8\u3055 h\u2080 \u304b\u3089\u521d\u901f v\u30fb\u4ef0\u89d2 \u03b8 \u3067\u653e\u3063\u305f\u7269\u4f53\u304c\u5730\u9762\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u6c34\u5e73\u8ddd\u96e2\u3068\u3057\u3066\u6c42\u3081\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>D = x_0 + v\\cos\\theta \\cdot \\frac{v\\sin\\theta + \\sqrt{v^2\\sin^2\\theta + 2 g h_0}}{g}<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5404\u76ee\u6a19\u8ddd\u96e2 D \u306b\u3064\u3044\u3066\u3001\u57fa\u6e96\u306e\u4ef0\u89d2\u3067 D \u306b\u5c4a\u304f\u521d\u901f v \u3092\u4e8c\u5206\u6cd5\u3067\u6c42\u3081\u308b\u3002<\/li>\n\n\n\n<li>\u540c\u3058 v \u306e\u307e\u307e\u3001\u767a\u5c04\u89d2\u30fb\u30ea\u30ea\u30fc\u30b9\u4f4d\u7f6e\u3092\u305a\u3089\u3057\u305f\u6761\u4ef6\u3067\u7740\u5730\u8ddd\u96e2 D\u2032 \u3092\u8a08\u7b97\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u8aa4\u5dee\u3092 D\u2032 \u2212 D \u3068\u3059\u308b\uff08\u6b63\u306f\u5965\u3001\u8ca0\u306f\u624b\u524d\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u7d50\u679c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ef0\u89d230\u00b0\u3067\u306f\u3001\u7740\u5730\u8aa4\u5dee\u306f3.5m\u3067\u7d044cm\u300111m\u3067\u7d0415cm\u3068\u306a\u308a\u3001\u8ddd\u96e2\u306b\u307b\u307c\u6bd4\u4f8b\u3057\u3066\u5897\u3048\u305f\u3002\u4ef0\u89d245\u00b0\u3067\u306f\u3001\u5168\u8ddd\u96e2\u3067\u624b\u524d\u30781cm\u672a\u6e80\u306e\u305a\u308c\u306b\u3068\u3069\u307e\u3063\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[embed: node\/fba07a3a-183f]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5fc5\u8981\u306a\u521d\u901f\u306f\u3001\u4ef0\u89d230\u00b0\u30675.5\u301c10.7 m\/s\u3001\u4ef0\u89d245\u00b0\u30675.4\u301c10.1 m\/s\u3067\u3042\u3063\u305f\u3002\u30ea\u30ea\u30fc\u30b9\u304c1cm\u65e9\u3044\u5834\u5408\u306f\u3001\u307b\u307c\u540c\u3058\u5927\u304d\u3055\u3067\u9006\u5411\u304d\uff0830\u00b0\u3067\u306f\u624b\u524d\uff09\u306b\u8aa4\u5dee\u304c\u751f\u3058\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u8003\u5bdf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 \u8aa4\u5dee\u306e\u4e3b\u56e0\u306f\u767a\u5c04\u89d2\u306e\u5909\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ef0\u89d230\u00b0\u30fb11m\u306e\u5834\u5408\u3001\u7dcf\u8aa4\u5dee15.0cm\u306e\u3046\u3061\u7d0413.5cm\u306f\u767a\u5c04\u89d2\u306e\u5909\u5316\u3060\u3051\u3067\u8aac\u660e\u3067\u304d\u308b\u3002\u30ea\u30ea\u30fc\u30b9\u4f4d\u7f6e\u304c\u524d\u65b9\u3078\u7d040.9cm\u52d5\u304f\u52b9\u679c\u306f\u6b8b\u308a\u306e1.5cm\u7a0b\u5ea6\u306b\u3059\u304e\u306a\u3044\u3002\u3064\u307e\u308a\u300c\u624b\u306e\u4f4d\u7f6e\u304c1cm\u305a\u308c\u308b\u300d\u3053\u3068\u3088\u308a\u300c\u8155\u306e\u89d2\u5ea6\u304c0.8\u00b0\u305a\u308c\u308b\u300d\u3053\u3068\u304c\u7740\u5730\u70b9\u3092\u5927\u304d\u304f\u52d5\u304b\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 \u4ef0\u89d2\u306b\u3088\u308b\u9055\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u98db\u8ddd\u96e2\u306f\u767a\u5c04\u89d2\u306b\u5bfe\u3057\u3066\u5c71\u306a\u308a\u306e\u95a2\u6570\u3067\u3001\u6700\u5927\u3068\u306a\u308b\u89d2\u5ea6\u306e\u4ed8\u8fd1\u3067\u306f\u89d2\u5ea6\u304c\u591a\u5c11\u305a\u308c\u3066\u3082\u98db\u8ddd\u96e2\u306f\u307b\u3068\u3093\u3069\u5909\u308f\u3089\u306a\u3044\u3002\u30ea\u30ea\u30fc\u30b9\u9ad8\u30550.6m\u3067\u306e\u6700\u9069\u89d2\u306f45\u00b0\u3088\u308a\u308f\u305a\u304b\u306b\u5c0f\u3055\u3044\u305f\u3081\u300145\u00b0\u3067\u306f\u305a\u308c\u306e\u5f71\u97ff\u304c\u76f8\u6bba\u3055\u308c\u3001\u8aa4\u5dee\u306f1cm\u672a\u6e80\u3068\u306a\u308b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9006\u306b30\u00b0\u306e\u3088\u3046\u306a\u4f4e\u3044\u8ecc\u9053\u3067\u306f\u3001\u89d2\u5ea6\u306e\u305a\u308c\u304c\u305d\u306e\u307e\u307e\u98db\u8ddd\u96e2\u306e\u5909\u5316\u306b\u7d50\u3073\u3064\u304f\u3002\u8ddd\u96e2\u304c\u4f38\u3073\u308b\u307b\u3069\u521d\u901f\u304c\u4e0a\u304c\u308a\u3001\u540c\u30580.8\u00b0\u306e\u305a\u308c\u3067\u3082\u8aa4\u5dee\u306f\u8ddd\u96e2\u306b\u307b\u307c\u6bd4\u4f8b\u3057\u3066\u5897\u3048\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 \u5b9f\u8df5\u3078\u306e\u542b\u610f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9060\u8ddd\u96e2\u306e\u72d9\u3044\u6483\u3061\u307b\u3069\u3001\u4f4e\u304f\u901f\u3044\u8ecc\u9053\u306f\u4e0d\u5229\u306b\u306a\u308b\u3002\u7cbe\u5ea6\u3092\u91cd\u8996\u3059\u308b\u5834\u9762\u3067\u306f\u3001\u5c71\u306a\u308a\u306e\u8ecc\u9053\u3092\u9078\u3076\u3053\u3068\u3067\u30ea\u30ea\u30fc\u30b9\u306e\u3076\u308c\u3092\u5438\u53ce\u3067\u304d\u308b\u3002\u305f\u3060\u3057\u5c71\u306a\u308a\u306e\u6295\u64f2\u306f\u7740\u5730\u5f8c\u306e\u8ee2\u304c\u308a\u3084\u8df3\u306d\u65b9\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u305d\u306e\u5f71\u97ff\u306f\u5225\u9014\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u9650\u754c\u3068\u4eca\u5f8c\u306e\u8ab2\u984c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8a66\u7b97\u306f\u5358\u7d14\u5316\u3057\u305f\u30e2\u30c7\u30eb\u306b\u57fa\u3065\u304f\u305f\u3081\u3001\u6570\u5024\u306f\u76ee\u5b89\u3068\u3057\u3066\u6271\u3046\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<ul 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