{"id":15363,"date":"2025-07-18T02:50:13","date_gmt":"2025-07-18T02:50:13","guid":{"rendered":"https:\/\/www.fizika-online.ru\/?page_id=15363"},"modified":"2025-07-18T14:50:37","modified_gmt":"2025-07-18T14:50:37","slug":"%d0%b7%d0%b0%d0%b4%d0%b0%d1%87%d0%b8-%d0%bd%d0%b0-%d0%b8%d0%bc%d0%bf%d1%83%d0%bb%d1%8c%d1%81-%d0%b8-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d1%8e-%d0%b7%d0%b0%d0%b4%d0%b0%d1%87%d0%b0-%d1%8d%d0%b8%d0%b8-9","status":"publish","type":"page","link":"https:\/\/www.fizika-online.ru\/?page_id=15363","title":{"rendered":"\u0417\u0430\u0434\u0430\u0447\u0438 \u043d\u0430 \u0438\u043c\u043f\u0443\u043b\u044c\u0441 \u0438 \u044d\u043d\u0435\u0440\u0433\u0438\u044e. \u0417\u0430\u0434\u0430\u0447\u0430 \u042d\u0438\u041817"},"content":{"rendered":"<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><em><strong>\u0417\u0430\u0434\u0430\u0447\u0430<\/strong><\/em>. \u0421\u0442\u0440\u0443\u044f \u0432\u043e\u0434\u044b, \u0432\u044b\u0442\u0435\u043a\u0430\u044e\u0449\u0430\u044f \u0438\u0437 \u0442\u0440\u0443\u0431\u044b \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u043e\u043c $d=2$ \u0441\u043c \u0441\u043e \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c\u044e $v=0,5$ \u043c\/\u0441, \u0443\u0434\u0430\u0440\u044f\u0435\u0442 \u0432 \u0441\u0442\u0435\u043d\u0443 \u0438 \u0441\u0442\u0435\u043a\u0430\u0435\u0442 \u043f\u043e \u043d\u0435\u0439. \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u0441\u0438\u043b\u0443 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0440\u0443\u0438 \u043d\u0430 \u0441\u0442\u0435\u043d\u0443.<\/span><\/p>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><em><strong>\u0420\u0435\u0448\u0435\u043d\u0438\u0435. <\/strong><\/em>\u0421\u0438\u043b\u0430 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u2014 \u044d\u0442\u043e \u0441\u0438\u043b\u0430, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0430\u044f \u043f\u0435\u0440\u043f\u0435\u043d\u0434\u0438\u043a\u0443\u043b\u044f\u0440\u043d\u043e \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 \u0442\u0435\u043b\u0430.\u00a0<\/span><\/p>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-15364\" src=\"https:\/\/www.fizika-online.ru\/wp-content\/uploads\/2025\/07\/2-52.jpg\" alt=\"\" width=\"426\" height=\"317\" srcset=\"https:\/\/www.fizika-online.ru\/wp-content\/uploads\/2025\/07\/2-52.jpg 426w, https:\/\/www.fizika-online.ru\/wp-content\/uploads\/2025\/07\/2-52-300x223.jpg 300w\" sizes=\"(max-width: 426px) 100vw, 426px\" \/><\/span><\/p>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><em><strong>\u00a0<\/strong><\/em>\u041f\u043e \u0442\u0440\u0435\u0442\u044c\u0435\u043c\u0443 \u0437\u0430\u043a\u043e\u043d\u0443 \u041d\u044c\u044e\u0442\u043e\u043d\u0430, \u0441\u0438\u043b\u0430 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043e\u0434\u044b \u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0443 \u0440\u0430\u0432\u043d\u0430 \u0441\u0438\u043b\u0435, \u0441 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0441\u0442\u0435\u043d\u043a\u0430 \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0430 \u0441\u0442\u0440\u0443\u044e \u0432\u043e\u0434\u044b. \u042d\u0442\u0443 \u0441\u0438\u043b\u0443 (\u0430 \u0437\u043d\u0430\u0447\u0438\u0442 \u0438 \u0441\u0438\u043b\u0443 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f) \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0438\u0437 \u0432\u0442\u043e\u0440\u043e\u0433\u043e \u0437\u0430\u043a\u043e\u043d\u0430 \u041d\u044c\u044e\u0442\u043e\u043d\u0430 \u0432 \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u043e\u0439 \u0444\u043e\u0440\u043c\u0435<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000; font-family: georgia, palatino, serif; font-size: 12pt;\">$\\overrightarrow{F}&#8217;=\\frac{\\Delta \\overrightarrow{p}}{\\Delta t}$,<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000; font-family: georgia, palatino, serif; font-size: 12pt;\">$F&#8217;_x=\\frac{\\Delta p_x}{\\Delta t}$.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">\u0422\u0430\u043a \u043a\u0430\u043a \u043f\u0440\u043e\u0435\u043a\u0446\u0438\u044f $F$ \u043d\u0430 \u043e\u0441\u044c $x$ \u043f\u043e\u043b\u043e\u0436\u0438\u0442\u0435\u043b\u044c\u043d\u0430, \u0430 $F&#8217;_x$ \u043d\u0430\u043f\u0440\u043e\u0442\u0438\u0432 &#8212; \u043e\u0442\u0440\u0438\u0446\u0430\u0442\u0435\u043b\u044c\u043d\u0430,<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">$F=-F&#8217;_x=-\\frac{\\Delta p_x}{\\Delta t}$.<\/span><\/p>\n<div id=\"yandex_rtb_R-A-1598022-3\"><\/div>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><script>window.yaContextCb.push(()=>{\n\tYa.Context.AdvManager.render({\n\t\t\"blockId\": \"R-A-1598022-3\",\n\t\t\"renderTo\": \"yandex_rtb_R-A-1598022-3\"\n\t})\n})\n<\/script><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">$F=-\\frac{p_{2x}-p_{1x}}{\\Delta t}=-\\frac{mv_{1x}-mv_x}{\\Delta t}=\\frac{mv}{\\Delta t}$.<\/span><\/p>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">\u041c\u0430\u0441\u0441\u0430 \u043f\u0435\u0440\u0435\u043d\u0435\u0441\u0435\u043d\u043d\u043e\u0439 \u0432\u043e\u0434\u044b \u0437\u0430 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u043a \u0432\u0440\u0435\u043c\u0435\u043d\u0438 $\\Delta t$ \u0440\u0430\u0432\u043d\u0430<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">$m=\\rho V=\\rho Sl=\\rho \\cdot \\frac{\\pi d^2}{4} \\cdot v \\Delta t$.<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">\u041f\u043e\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u044d\u0442\u043e \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u0432 \u0444\u043e\u0440\u043c\u0443\u043b\u0443 \u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0441\u0438\u043b\u044b<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">$F=\\frac{\\rho \\cdot \\frac{\\pi d^2}{4} \\cdot v \\Delta tv}{\\Delta t}=\\rho \\cdot \\frac{\\pi d^2}{4} \\cdot v^2$,<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\">$F=1000 \\cdot \\frac{3,14 \\cdot 0,02^2}{4} \\cdot 0,5^2\\approx 0,08$\u00a0\u041d.<\/span><\/p>\n<p><span style=\"font-family: georgia, palatino, serif; font-size: 12pt; color: #000000;\"><em><strong>\u041e\u0442\u0432\u0435\u0442:<\/strong><\/em> 0,08 \u041d.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0417\u0430\u0434\u0430\u0447\u0430. \u0421\u0442\u0440\u0443\u044f \u0432\u043e\u0434\u044b, \u0432\u044b\u0442\u0435\u043a\u0430\u044e\u0449\u0430\u044f \u0438\u0437 \u0442\u0440\u0443\u0431\u044b \u0434\u0438\u0430\u043c\u0435\u0442\u0440\u043e\u043c $d=2$ \u0441\u043c \u0441\u043e \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c\u044e $v=0,5$ \u043c\/\u0441, \u0443\u0434\u0430\u0440\u044f\u0435\u0442 \u0432 \u0441\u0442\u0435\u043d\u0443 \u0438 \u0441\u0442\u0435\u043a\u0430\u0435\u0442 \u043f\u043e \u043d\u0435\u0439. \u041d\u0430\u0439\u0434\u0438\u0442\u0435 \u0441\u0438\u043b\u0443 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0440\u0443\u0438 \u043d\u0430 \u0441\u0442\u0435\u043d\u0443. \u0420\u0435\u0448\u0435\u043d\u0438\u0435. \u0421\u0438\u043b\u0430 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u2014 \u044d\u0442\u043e \u0441\u0438\u043b\u0430, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0430\u044f \u043f\u0435\u0440\u043f\u0435\u043d\u0434\u0438\u043a\u0443\u043b\u044f\u0440\u043d\u043e \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 \u0442\u0435\u043b\u0430.\u00a0 \u00a0\u041f\u043e \u0442\u0440\u0435\u0442\u044c\u0435\u043c\u0443 \u0437\u0430\u043a\u043e\u043d\u0443 \u041d\u044c\u044e\u0442\u043e\u043d\u0430, \u0441\u0438\u043b\u0430 \u0434\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043e\u0434\u044b \u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0443 \u0440\u0430\u0432\u043d\u0430 \u0441\u0438\u043b\u0435, \u0441 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0441\u0442\u0435\u043d\u043a\u0430 \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u0435\u0442 \u043d\u0430 \u0441\u0442\u0440\u0443\u044e \u0432\u043e\u0434\u044b. \u042d\u0442\u0443\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.fizika-online.ru\/?page_id=15363\">\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/pages\/15363"}],"collection":[{"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15363"}],"version-history":[{"count":5,"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/pages\/15363\/revisions"}],"predecessor-version":[{"id":15370,"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=\/wp\/v2\/pages\/15363\/revisions\/15370"}],"wp:attachment":[{"href":"https:\/\/www.fizika-online.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}