{"id":1945,"date":"2020-07-04T20:00:21","date_gmt":"2020-07-04T23:00:21","guid":{"rendered":"https:\/\/professorpinguim.com.br\/blog\/?p=1945"},"modified":"2023-08-06T21:19:30","modified_gmt":"2023-08-07T00:19:30","slug":"uma-equilibrista-de-massa-m-fuvest-2020-2a-fase-questao-de-estatica","status":"publish","type":"post","link":"https:\/\/professorpinguim.com.br\/blog\/uma-equilibrista-de-massa-m-fuvest-2020-2a-fase-questao-de-estatica\/","title":{"rendered":"Uma equilibrista de massa M | Fuvest 2020 2\u00aa Fase | Quest\u00e3o de Est\u00e1tica"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Fala, pessoal! Vem comigo resolver a quest\u00e3o n\u00famero 6 da prova da Fuvest 2020 &#8211; 2\u00aa fase.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">Uma equilibrista de massa M desloca\u2010se sobre uma t\u00e1bua uniforme de comprimento L e massa m apoiada (sem fixa\u00e7\u00e3o) sobre duas colunas separadas por uma dist\u00e2ncia D (D&lt;L) de modo que o centro da t\u00e1bua esteja equidistante das colunas. O ponto de apoio da equilibrista est\u00e1 a uma dist\u00e2ncia d (tal que D\/2&lt;d&lt;L\/2) do centro da t\u00e1bua, como mostra a figura.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a) Considerando que a t\u00e1bua est\u00e1 em equil\u00edbrio, fa\u00e7a um diagrama indicando todas as for\u00e7as que atuam sobre a t\u00e1bua e seus<br>respectivos pontos de aplica\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) Calcule o torque resultante exercido pelos pesos da equilibrista e da t\u00e1bua em rela\u00e7\u00e3o ao ponto A (ponto de apoio da t\u00e1bua<br>na coluna mais pr\u00f3xima da equilibrista). Escreva sua resposta em termos de grandezas mencionadas no enunciado (M, L, m, D, d) e da acelera\u00e7\u00e3o da gravidade g.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c) Calcule a dist\u00e2ncia m\u00e1xima dm\u00e1x da equilibrista ao centro da t\u00e1bua para que o conjunto permane\u00e7a em equil\u00edbrio est\u00e1tico.<br>Considere os seguintes dados: comprimento da t\u00e1bua: L = 5 m; massa da t\u00e1bua: m = 20 kg, massa da equilibrista: M = 60 kg, dist\u00e2ncia<br>entre as colunas: D = 3 m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note e adote:<br>Despreze as espessuras da t\u00e1bua e da coluna.<br>Use g = 10 m\/s\u00b2<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Fuvest 2020 | Q6 | Segunda Fase | F\u00edsica | Professor Pinguim | Em um ambiente do qual se retirou\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/aJL35kI9tm8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tem d\u00favidas de como funciona a minha plataforma e a minha metodologia de ensino? <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/conteudo.professorpinguim.com.br\/experimente-plataforma\" target=\"_blank\">Clique aqui<\/a> <\/strong>e acesse gratuitamente os m\u00f3dulos de <strong>Cinem\u00e1tica <\/strong>e <strong>\u00d3ptica<\/strong> do meu <strong>&nbsp;SEMIEXTENSIVO exclusivo para FUVEST, UNICAMP, UNESP E UNIFESP. <\/strong>Tenho certeza que vai mudar a sua vida.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/professorpinguim.com.br\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"728\" height=\"90\" src=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90.png\" alt=\"\" class=\"wp-image-1733\" srcset=\"https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90.png 728w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90-300x37.png 300w, https:\/\/professorpinguim.com.br\/blog\/wp-content\/uploads\/2020\/07\/BannerBlog_728x90-670x83.png 670w\" sizes=\"(max-width: 728px) 100vw, 728px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Me acompanhe nas redes sociais: curta a minha&nbsp;<a href=\"https:\/\/www.facebook.com\/professorpinguim\/\"><strong>p\u00e1gina no Facebook<\/strong><\/a><strong>,<\/strong>&nbsp;me&nbsp;siga no&nbsp;<a href=\"https:\/\/www.instagram.com\/professorpinguim\/\"><strong>Instagram<\/strong><\/a><strong>,<\/strong>&nbsp;se inscreva no&nbsp;<a href=\"https:\/\/www.youtube.com\/c\/PinguimV%C3%ADdeoF%C3%ADsica\/?sub_confirmation=1\"><strong>Youtube<\/strong><\/a>&nbsp;e participe do meu canal oficial no&nbsp;<strong><a href=\"http:\/\/professorpinguim.com.br\/telegram\">Telegram<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fala, pessoal! Vem comigo resolver a quest\u00e3o n\u00famero 6 da prova da Fuvest 2020 &#8211; 2\u00aa fase.<\/p>\n","protected":false},"author":1,"featured_media":1946,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282],"tags":[210,322,330,325,323],"class_list":["post-1945","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exercicios-resolvidos-fuvest","tag-fuvest","tag-fuvest-2020","tag-fuvest-segunda-fase","tag-prova-fuvest-segunda-fase-2020","tag-resolver-prova-fuvest-2020"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.12 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Uma equilibrista de massa M | Fuvest 2020 2\u00aa Fase | Quest\u00e3o de Est\u00e1tica - Professor Pinguim | F\u00edsica<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/professorpinguim.com.br\/blog\/uma-equilibrista-de-massa-m-fuvest-2020-2a-fase-questao-de-estatica\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Uma equilibrista de massa M | Fuvest 2020 2\u00aa Fase | Quest\u00e3o de Est\u00e1tica - Professor Pinguim | F\u00edsica\" \/>\n<meta property=\"og:description\" content=\"Fala, pessoal! 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