{"id":7075,"date":"2025-03-28T21:11:04","date_gmt":"2025-03-28T12:11:04","guid":{"rendered":"https:\/\/torisetudy.com\/?p=7075"},"modified":"2026-07-09T00:29:20","modified_gmt":"2026-07-08T15:29:20","slug":"7075","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=7075","title":{"rendered":"\u96fb\u78c1\u8a98\u5c0e\u306e\u554f\u984c\u3078\u306e\u30a2\u30d7\u30ed\u30fc\u30c1"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u96fb\u78c1\u8a98\u5c0e\u306e\u554f\u984c\u3078\u306e\u30a2\u30d7\u30ed\u30fc\u30c1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u56de\u8def\u81ea\u4f53\u304c\u52d5\u3044\u305f\u308a\uff0c\u56de\u8def\u306e\u4e00\u90e8\u304c\u68d2\u3068\u3057\u3066\u52d5\u3044\u305f\u308a\uff0c\u56de\u8def\u5185\u90e8\u306e\u78c1\u675f\u5bc6\u5ea6\u304c\u5909\u5316\u3057\u305f\u308a\u2026\uff0c\u69d8\u3005\u306a\u30bf\u30a4\u30d7\u306e\u96fb\u78c1\u8a98\u5c0e\u306e\u554f\u984c\u304c\u5165\u8a66\u3067\u306f\u51fa\u984c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306a\u30bf\u30a4\u30d7\u306e\u554f\u984c\u3067\u306f\uff0c\u4ee5\u4e0b\u306e\u6d41\u308c\u3067\u89e3\u304f\u3053\u3068\u304c\u591a\u3044\u305f\u3081\uff0c\u3053\u306e\u6d41\u308c\u3092\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3057\u3066\u304a\u3044\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-point-box st-point-box has-title post-hashiro-point\" style=\"\n        background-color:#fff; \n        border: 2px solid #ff7f50; \n        padding: 0px 18px; \n        border-radius: 4pt; \n        position: relative;\">\n        \n        <p class=\"st-mybox-title\" style=\"\n            position: absolute; \n            top: -12px; \n            left: 12px; \n            background-color: #fff; \n            padding: 0 10px; \n            color: #ff7f50; \n            font-weight: bold; \n            font-size: 15px; \n            line-height: 1.5; \n            text-decoration: none;\n            margin-bottom: 20px; \n            display: flex; \n            align-items: center; \n            gap: 5px;\">\n            <i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"true\"><\/i> \u96fb\u78c1\u8a98\u5c0e\u306e\u554f\u984c\u3078\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\n        <\/p>\n\n        <div class=\"st-in-point-box\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding-top: 0px;\n            padding-bottom: 30px;\">\n            \n                <p class=\"has-st-margin-bottom has-st-margin-bottom--1\" style=\"margin-bottom: -10px !important;\"><\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p class=\"marukakko\">\u56de\u8def\u306b\u751f\u3058\u308b\u8a98\u5c0e\u8d77\u96fb\u529b\u3092\u6c42\u3081\u308b\u3002<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p class=\"marukakko\">\u56de\u8def\u306b\u304a\u3051\u308b\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u3092\u7acb\u5f0f\u3059\u308b\u3002<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p class=\"marukakko\">\u56de\u8def\u306b\u6d41\u308c\u308b\u96fb\u6d41\u304b\u3089\u96fb\u78c1\u529b\u3092\u6c42\u3081\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u7acb\u5f0f\u3059\u308b\u3002<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p class=\"marukakko\">\u5fc5\u8981\u306b\u5fdc\u3058\u3066\uff0c\u56de\u8def\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u3092\u8003\u3048\u308b\u3002<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p><\/p>\n        <\/div>\n    <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u306b\u304b\u304f\u300c\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u300d\u3068\u300c\u904b\u52d5\u65b9\u7a0b\u5f0f\u300d\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\uff01<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u4f55\u3092\u3057\u3066\u3044\u3044\u304b\u308f\u304b\u3089\u306a\u304f\u306a\u3063\u305f\u3089\uff0c\u72b6\u6cc1\u3092\u6574\u7406\u3057\u3066\u300c\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u300d\u3068\u300c\u904b\u52d5\u65b9\u7a0b\u5f0f\u300d\u3092\u7acb\u3066\u3066\u4e0b\u3055\u3044\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n    <div class=\"wp-block-st-blocks-memo clip-memobox has-icon-label post-hashiro-tyuu\" style=\"\n        color:#808080;\n        background-color:#f5f5f5;\">\n        \n        <div class=\"clip-fonticon\" style=\"\n            color:#919191; \n            border-color:#9191914d;\">\n            <i class=\"st-fa st-svg-exclamation-circle st-css-no\" data-icon-label=\"\u6ce8\" aria-hidden=\"true\"><\/i>\n        <\/div>\n\n        <div class=\"clip-memotext\" style=\"\n            color:#808080;\">\n            <p>\u5c0e\u4f53\u68d2\u304c\u4e00\u5b9a\u901f\u5ea6\u3067\u52d5\u304f\u72b6\u6cc1\u3067\u306f\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u306e\u4ee3\u308f\u308a\u306b\u3064\u308a\u5408\u3044\u3092\u8003\u3048\u308c\u3070\u5341\u5206\u3002<\/p>\n        <\/div>\n    <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u3089\u3086\u308b\u30c6\u30b9\u30c8\u3067\u975e\u5e38\u306b\u51fa\u984c\u983b\u5ea6\u306e\u9ad8\u3044\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\uff01\u56de\u8def\u56f3\u3084\u529b\u306e\u4f5c\u7528\u56f3\u3092\u9069\u5b9c\u304b\u304d\u306a\u304c\u3089\uff0c\u4e01\u5be7\u306b\u7acb\u5f0f\u3057\u3066\u3044\u304f\u7df4\u7fd2\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u2026\uff01<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-midashi-box freebox has-title post-hashiro-reidai\" style=\"\n        background-color:#f7f7fb; \n        border-width: 3px; \n        border-color:#a3bded;\">\n        \n        <p class=\"p-free\" style=\"\n            border-color:#a3bded; \n            font-weight: bold;\">\n            <span class=\"p-entry-f\" style=\"\n                color:#ffffff; \n                font-weight: bold; \n                background-color:#a3bded;\">\n                <i class=\"st-fa st-svg-pencil st-css-no\" aria-hidden=\"true\"><\/i> \u4f8b\u984c\n            <\/span>\n        <\/p>\n\n        <div class=\"free-inbox\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding: 10px 15px;\">\n            <p>\u56f3\u306e\u3088\u3046\u306b\uff0c2\u672c\u306e\u5c0e\u7dda\u304c\u8ddd\u96e2 $L$ \u3078\u3060\u3066\u3066\u5e73\u884c\u306b\uff0c\u6c34\u5e73\u9762\u306b\u5bfe\u3057\u3066\u89d2\u5ea6 $\\theta$ \u306e\u50be\u659c\u3067\u8a2d\u7f6e\u3055\u308c\u3066\u3044\u308b\u3002\u5c0e\u7dda\u540c\u58eb\u306f\u62b5\u6297\u5024\u304c $R$ \u306e\u96fb\u6c17\u62b5\u6297 $\\rmR$ \u3067\u3064\u306a\u304c\u308c\uff0c\u56de\u8def\u5168\u4f53\u306b\u78c1\u675f\u5bc6\u5ea6 $B$ \u306e\u925b\u76f4\u4e0a\u5411\u304d\u306e\u78c1\u5834\u304c\u304b\u3051\u3089\u308c\u3066\u3044\u308b\u3002\u3053\u306e\u4e26\u884c\u306a\u5c0e\u7dda\u306b\uff0c\u8cea\u91cf\u304c $m$\uff0c\u9577\u3055\u304c $L$ \u306e\u5c0e\u4f53\u68d2\u3092\u4e57\u305b\uff0c\u305d\u3063\u3068\u624b\u3092\u96e2\u3057\u305f\u3002\u91cd\u529b\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u3092 $g$ \u3068\u3057\u3066\uff0c\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002<\/p><p><figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"202\" height=\"113\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406971.svg\" alt=\"\u7269\u7406971\" class=\"wp-image-6654\"\/><noscript><img decoding=\"async\" width=\"202\" height=\"113\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406971.svg\" alt=\"\u7269\u7406971\" class=\"wp-image-6654\"\/><\/noscript><\/figure><\/p><\/p><p><p class=\"setumonnkakko\">\u5c0e\u4f53\u68d2\u306e\u901f\u3055\u304c $v$ \u306e\u3068\u304d\uff0c\u5c0e\u4f53\u68d2\u306b\u6d41\u308c\u308b\u96fb\u6d41\u306e\u5411\u304d\u3068\u5927\u304d\u3055\u3092\u6c42\u3081\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">\u5341\u5206\u306a\u6642\u9593\u304c\u7d4c\u904e\u3059\u308b\u3068\uff0c\u5c0e\u4f53\u68d2\u306e\u901f\u3055\u306f\u4e00\u5b9a\u5024 $v_f$ \u3068\u306a\u3063\u305f\u3002$v_f$ \u3092\u6c42\u3081\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">(2)\u306e\u72b6\u6cc1\u306b\u304a\u3044\u3066\uff0c\u5c0e\u4f53\u68d2\u304c\u5931\u3046\u4f4d\u7f6e\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\u3069\u306e\u3088\u3046\u306a\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u5909\u5316\u3057\u3066\u3044\u308b\u304b\u3092\u8ff0\u3079\u3088\u3002<\/p><\/p><p><p><\/p>\n        <\/div>\n    <\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\uff01\uff01<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u68d2\u304c\u52d5\u3044\u3066\u3044\u308b\u304b\u3089 $lvB$\uff01\u300d\u3068\u3057\u3066\u3057\u307e\u3063\u305f\u7686\u3055\u3093\u306f\u5927\u53cd\u7701\uff01\u5165\u8a66\u3067\u305d\u308c\u3092\u3084\u3063\u3066\u3057\u307e\u3046\u3068<span class=\"st-mymarker-s-b\">\u5927\u554f\u4e38\u30051\u3064\u5439\u304d\u98db\u3073\u307e\u3059<\/span>\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u305d\u3093\u306a\u60b2\u3057\u3044\u30df\u30b9\u3092\u3059\u308b\u3053\u3068\u304c\u306a\u3044\u3088\u3046\uff0c\u4e01\u5be7\u306b\u8003\u3048\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">(1) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9a\u77f3\u901a\u308a\uff0c\u5c0e\u4f53\u68d2\u306b\u751f\u3058\u308b\u8a98\u5c0e\u8d77\u96fb\u529b\u3092\u6c42\u3081\u3066\uff0c\u56de\u8def\u306b\u304a\u3051\u308b\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u3092\u7acb\u5f0f\u3059\u308b\u3068\u3044\u3046\u6d41\u308c\u3067\u3059\u3002<\/p>\n\n\n\n  <div class=\"step-box\">\n    <div class=\"step-label\">STEP 1<\/div>\n    <div class=\"step-title\">\u56de\u8def\u306b\u751f\u3058\u308b\u8a98\u5c0e\u8d77\u96fb\u529b\u3092\u6c42\u3081\u308b<\/div>\n  <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306b\u751f\u3058\u308b\u8a98\u5c0e\u8d77\u96fb\u529b\u3092\u6c42\u3081\u308b\u306b\u3042\u305f\u3063\u3066\u306f\uff0c\u3068\u3063\u3066\u3082\u3068\u3063\u3066\u3082\u6ce8\u610f\u3057\u3066\u4e0b\u3055\u3044\uff01$lvB$ \u3067\u306f\u3042\u308a\u307e\u305b\u3093\uff01<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306e\u901f\u5ea6\u3068\uff0c\u78c1\u675f\u5bc6\u5ea6\u304c\u76f4\u4ea4\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u300c\u5358\u4f4d\u6642\u9593\u306e\u9593\u306b\u5c0e\u4f53\u68d2\u304c\u901a\u904e\u3057\u305f\u9818\u57df\u3092\u56f3\u793a\u3057\u3066\uff0c\u305d\u306e\u9818\u57df\u3092\u8cab\u304f\u78c1\u675f\u3092\u6c42\u3081\u308b\u300d\u3068\u3044\u3046\u624b\u9806\u3067\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"319\" height=\"106\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406972.svg\" alt=\"\u7269\u7406972\" class=\"wp-image-6655\"\/><noscript><img decoding=\"async\" width=\"319\" height=\"106\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406972.svg\" alt=\"\u7269\u7406972\" class=\"wp-image-6655\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5358\u4f4d\u6642\u9593\u306e\u9593\u306b\u5c0e\u4f53\u68d2\u306f $v$ \u3060\u3051\u52d5\u304f\u305f\u3081\uff0c\u5c0e\u4f53\u68d2\u306e\u901a\u904e\u9818\u57df\u306f\u4e0a\u56f3\u306e\u901a\u308a\u3067\u3059\u3002\u9762\u7a4d\u306f $S=Lv$ \u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u9818\u57df\u3092\u8cab\u304f\u78c1\u675f\u3092\u6c42\u3081\u308b\u306b\u3042\u305f\u3063\u3066\u306f\uff0c\u771f\u6a2a\u304b\u3089\u898b\u305f\u56f3\u3092\u6d3b\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u76ee\u3057\u3066\u3044\u308b\u9762\u306b\u5bfe\u3057\u3066\uff0c\u78c1\u675f\u5bc6\u5ea6\u304c $\\theta$ \u3060\u3051\u50be\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u3063\u3066\uff0c\u3053\u306e\u9762\u306b\u5782\u76f4\u306a\u65b9\u5411\u306e\u6210\u5206\u306f $B\\cos\\theta$ \u3067\u3059\u306e\u3067\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$V=BS\\cos\\theta=LvB\\cos\\theta$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u304c\u5c0e\u4f53\u68d2\u306b\u751f\u3058\u308b\u8a98\u5c0e\u8d77\u96fb\u529b\u306e\u5927\u304d\u3055\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a98\u5c0e\u8d77\u96fb\u529b\u306e\u5411\u304d\u306f\uff0c\u5c0e\u4f53\u68d2\u3068\u3068\u3082\u306b\u52d5\u304f\u6b63\u306e\u96fb\u8377\u304c\u53d7\u3051\u308b\u30ed\u30fc\u30ec\u30f3\u30c4\u529b\u304b\u3089\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"154\" height=\"89\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406973.svg\" alt=\"\u7269\u7406973\" class=\"wp-image-6656\"\/><noscript><img decoding=\"async\" width=\"154\" height=\"89\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406973.svg\" alt=\"\u7269\u7406973\" class=\"wp-image-6656\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30ec\u30df\u30f3\u30b0\u306e\u5de6\u624b\u306e\u6cd5\u5247\u3092\u7528\u3044\u308b\u3053\u3068\u3067\uff0c\u30ed\u30fc\u30ec\u30f3\u30c4\u529b\u306f\u5c0e\u4f53\u68d2\u4e0a\u3067\u5965\u304b\u3089\u624b\u524d\u5411\u304d\u3068\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3088\u308a\uff0c\u5c0e\u4f53\u68d2\u306b\u6d41\u308c\u308b\u96fb\u6d41\u306e\u5411\u304d\u304c\u300c\u5965\u304b\u3089\u624b\u524d\u5411\u304d\u300d\u3068\u3057\u3066\u6c42\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n  <div class=\"step-box\">\n    <div class=\"step-label\">STEP 2<\/div>\n    <div class=\"step-title\">\u56de\u8def\u306b\u304a\u3051\u308b\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u3092\u7acb\u5f0f\u3059\u308b<\/div>\n  <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\u3092\u8e0f\u307e\u3048\u3066\uff0c\u56de\u8def\u3092\u4e0a\u304b\u3089\u898b\u305f\u69d8\u5b50\u3092\u56f3\u793a\u3059\u308b\u3068\u6b21\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"141\" height=\"94\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406974.svg\" alt=\"\u7269\u7406974\" class=\"wp-image-6657\"\/><noscript><img decoding=\"async\" width=\"141\" height=\"94\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406974.svg\" alt=\"\u7269\u7406974\" class=\"wp-image-6657\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u3092\u6d41\u308c\u308b\u96fb\u6d41\u306e\u5927\u304d\u3055 $I$ \u306f\uff0c\u30ad\u30eb\u30d2\u30db\u30c3\u30d5\u306e\u7b2c\u4e8c\u6cd5\u5247\u3088\u308a\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$V=RI \\qquad \\therefore \\quad I=\\bun{LvB\\cos\\theta}{R}$$<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(2) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u5c0e\u4f53\u68d2\u306e\u901f\u3055\u304c\u4e00\u5b9a\u300d\u3068\u3044\u3046\u70b9\u306b\u6ce8\u76ee\u3057\uff0c\u5c0e\u7dda\u65b9\u5411\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u3092\u7acb\u5f0f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\u2462\u306e\u624b\u9806\u306e\u7279\u6b8a\u306a\u5834\u5408\u3068\u8003\u3048\u3066ok\u3067\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n  <div class=\"step-box\">\n    <div class=\"step-label\">STEP 3<\/div>\n    <div class=\"step-title\">\u56de\u8def\u306b\u6d41\u308c\u308b\u96fb\u6d41\u304b\u3089\u96fb\u78c1\u529b\u3092\u6c42\u3081\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u7acb\u5f0f\u3059\u308b<\/div>\n  <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306b\u6d41\u308c\u308b\u96fb\u6d41\u306e\u5927\u304d\u3055 $I_f$ \u306f\uff0c(1) \u306e\u7b54\u3048\u306b\u304a\u3044\u3066 $v\\to v_f$ \u3068\u3059\u308b\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$I_f=\\bun{Lv_fB\\cos\\theta}{R}$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3057\u3066\u6c42\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"135\" height=\"110\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406975.svg\" alt=\"\u7269\u7406975\" class=\"wp-image-6658\"\/><noscript><img decoding=\"async\" width=\"135\" height=\"110\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406975.svg\" alt=\"\u7269\u7406975\" class=\"wp-image-6658\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u771f\u6a2a\u304b\u3089\u898b\u305f\u56f3\u3092\u5229\u7528\u3057\u3066\u72b6\u6cc1\u3092\u6574\u7406\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u78c1\u675f\u5bc6\u5ea6\u306f\u4e0a\u5411\u304d\uff0c\u5c0e\u7dda\u4e0a\u306e\u96fb\u6d41\u306f\u7d19\u9762\u624b\u524d\u5411\u304d\u3068\u306a\u308b\u3053\u3068\u304b\u3089\uff0c\u30d5\u30ec\u30df\u30f3\u30b0\u306e\u5de6\u624b\u306e\u6cd5\u5247\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u96fb\u78c1\u529b\u306e\u5411\u304d\u304c\u5de6\u5411\u304d\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u306a\u304a\uff0c\u3053\u3053\u3067\u3082\u300c\u96fb\u78c1\u529b\u306e\u5411\u304d\u306f\u5c0e\u7dda\u306b\u5e73\u884c\u306a\u5411\u304d\u300d\u3068\u3057\u3066\u3057\u307e\u3046\u30df\u30b9\u304c\u591a\u767a\u3057\u307e\u3059\uff01\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u96fb\u78c1\u529b\u306f\u96fb\u6d41\u306b\u3082\u78c1\u675f\u5bc6\u5ea6\u306b\u3082\u76f4\u4ea4\u3059\u308b\u3053\u3068\u3092\u5f37\u304f\u610f\u8b58\u3057\u3066\u4e0b\u3055\u3044\uff01\uff01\u3053\u306e\u3088\u3046\u306a\u5411\u304d\u306f\u300c\u5de6\u300d\u304b\u300c\u53f3\u300d\u3057\u304b\u3042\u308a\u307e\u305b\u3093\uff01<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u96fb\u78c1\u529b\u306e\u5927\u304d\u3055\u306f\uff0c$LI_fB$ \u3067ok\u3067\u3059\u306d\u3002\u5c0e\u7dda\u306b\u5e73\u884c\u306a\u65b9\u5411\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u304b\u3089\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$LI_fB\\cos\\theta=mg\\sin\\theta$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u7acb\u5f0f\u3067\u304d\u308b\u306e\u3067\uff0c\u3053\u308c\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$v_f=\\Bun{mgR\\tan\\theta}{L^2B^2\\cos\\theta}$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3057\u3066\u7b54\u3048\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306f\u659c\u9762\u4e0a\u5411\u304d\u65b9\u5411\u6210\u5206\u3092\u6301\u3064\u96fb\u78c1\u529b\u3092\u53d7\u3051\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306f\u659c\u9762\u3092\u4e0b\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u304b\u3089\uff0c\u3053\u306e\u96fb\u78c1\u529b\u306e\u5411\u304d\u306f\u300c\u5909\u5316\u3092\u59a8\u3052\u308b\u5411\u304d\u300d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(3) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0e\u4f53\u68d2\u306f\u5358\u4f4d\u6642\u9593\u306e\u9593\u306b\u5c0e\u7dda\u4e0a\u3092 $v_f$ \u3060\u3051\u52d5\u304f\u306e\u3067\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b $v_f\\sin\\theta$ \u3060\u3051\u79fb\u52d5\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u3063\u3066\uff0c\u5c0e\u4f53\u68d2\u304c\u5358\u4f4d\u6642\u9593\u3042\u305f\u308a\u306b\u5931\u3046\u91cd\u529b\u306e\u4f4d\u7f6e\u30a8\u30cd\u30eb\u30ae\u30fc\u306f\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$mgv_f\\sin\\theta=\\bun{m^2g^2R\\tan^2\\theta}{L^2B^2}$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u3057\u3066\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\uff0c\u5358\u4f4d\u6642\u9593\u3042\u305f\u308a\u306b\u62b5\u6297 $\\rmR$ \u3067\u6d88\u8cbb\u3055\u308c\u308b\u96fb\u529b\u3092\u8a08\u7b97\u3059\u308b\u3068\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$RI_f^2=\\bun{m^2g^2R\\tan^2\\theta}{L^2B^2}$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u3053\u308c\u306f\uff0c\u5c0e\u4f53\u68d2\u304c\u5358\u4f4d\u6642\u9593\u3042\u305f\u308a\u306b\u5931\u3046\u4f4d\u7f6e\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u7b49\u3057\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p 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