{"id":16334,"date":"2024-09-19T12:06:00","date_gmt":"2024-09-19T15:06:00","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=16334"},"modified":"2024-09-19T12:06:02","modified_gmt":"2024-09-19T15:06:02","slug":"questao-94-enem-2021","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-94-enem-2021\/","title":{"rendered":"Quest\u00e3o 094 &#8211; ENEM 2021\u00a0\u00a0"},"content":{"rendered":"\n<p>A figura foi extra\u00edda de um antigo jogo para computadores, chamado Bang! Bang!<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"340\" height=\"192\" src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-368.png\" alt=\"\" class=\"wp-image-16335\" title=\"\" srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-368.png 340w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-368-300x169.png 300w\" sizes=\"(max-width: 340px) 100vw, 340px\" \/><\/figure>\n\n\n\n<p>No jogo, dois competidores controlam os canh\u00f5es <strong>A<\/strong> e <strong>B<\/strong>, disparando balas alternadamente com o objetivo \u00a0 de atingir o canh\u00e3o advers\u00e1rio; para isso, atribuem\u00a0 valores estimados para o m\u00f3dulo da velocidade inicial de disparo (v<sub>0<\/sub>) e para o \u00e2ngulo de disparo (\u03b8).\u00a0<\/p>\n\n\n\n<p>Em determinado momento de uma partida, o competidor <strong>B<\/strong> deve disparar; ele sabe que a bala disparada anteriormente, \u03b8 = 53\u00b0, passou tangenciando o ponto <strong>P<\/strong>.&nbsp;<\/p>\n\n\n\n<p>No jogo, g \u00e9 igual a 10 m\/s\u00b2 . Considere sen 53\u00b0 = 0,8, cos 53\u00b0=0.6 e desprez\u00edvel a atua\u00e7\u00e3o de for\u00e7as dissipativas.&nbsp;<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>(Dispon\u00edvel em: http:\/\/mebdownloads.butzke.net.br. Acesso em: 18 abr. 2015 (adaptado).\u00a0<\/strong><\/p>\n\n\n\n<p>Com base nas dist\u00e2ncias dadas e mantendo o \u00faltimo \u00e2ngulo de disparo, qual deveria ser, aproximadamente, o menor valor de v<sub>0<\/sub> que permitiria ao disparo efetuado pelo canh\u00e3o <strong>B<\/strong> atingir o canh\u00e3o <strong>A<\/strong><\/p>\n\n\n\n<p>A) 30 m\/s.&nbsp;<\/p>\n\n\n\n<p>B) 35 m\/s.&nbsp;<\/p>\n\n\n\n<p>C) 40 m\/s.&nbsp;<\/p>\n\n\n\n<p>D) 45 m\/s.&nbsp;<\/p>\n\n\n\n<p>E) 50 m\/s.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p>Na dire\u00e7\u00e3o horizontal, tem-se<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"190\" height=\"233\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-369.png\" alt=\"\" class=\"wp-image-16336 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 190px; --smush-placeholder-aspect-ratio: 190\/233;\"><\/figure>\n\n\n\n<p>Na dire\u00e7\u00e3o vertical, tem-se<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"223\" height=\"90\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-370.png\" alt=\"\" class=\"wp-image-16337 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 223px; --smush-placeholder-aspect-ratio: 223\/90;\"><\/figure>\n\n\n\n<p>Sabemos que <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"87\" height=\"37\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-372.png\" alt=\"\" class=\"wp-image-16339 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 87px; --smush-placeholder-aspect-ratio: 87\/37;\"><\/figure>\n\n\n\n<p><strong> <\/strong>logo<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"171\" height=\"34\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-371.png\" alt=\"\" class=\"wp-image-16338 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 171px; --smush-placeholder-aspect-ratio: 171\/34;\"><\/figure>\n\n\n\n<p>Isolando o tempo t:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"212\" height=\"175\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-374.png\" alt=\"\" class=\"wp-image-16341 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 212px; --smush-placeholder-aspect-ratio: 212\/175;\"><\/figure>\n\n\n\n<p>Logo substituindo em<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"100\" height=\"35\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-375.png\" alt=\"\" class=\"wp-image-16342 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/35;\"><\/figure>\n\n\n\n<p>tem-se<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"117\" height=\"88\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-376.png\" alt=\"\" class=\"wp-image-16343 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 117px; --smush-placeholder-aspect-ratio: 117\/88;\"><\/figure>\n\n\n\n<p><strong>Alternativa C<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A figura foi extra\u00edda de um antigo jogo para computadores, chamado Bang! Bang! No jogo, dois competidores controlam os canh\u00f5es A e B, disparando balas alternadamente com o objetivo \u00a0 de atingir o canh\u00e3o advers\u00e1rio; para isso, atribuem\u00a0 valores estimados para o m\u00f3dulo da velocidade inicial de disparo (v0) e para o \u00e2ngulo de disparo [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":16335,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,21],"tags":[],"area-do-conhecimento":[116,121],"assunto":[],"class_list":["post-16334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-questoes-do-enem","category-21","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-fisica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=16334"}],"version-history":[{"count":1,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16334\/revisions"}],"predecessor-version":[{"id":16344,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/16334\/revisions\/16344"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media\/16335"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=16334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=16334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=16334"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=16334"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=16334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}