{"id":4011,"date":"2018-06-25T04:59:01","date_gmt":"2018-06-25T04:59:01","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4011"},"modified":"2024-08-22T12:44:52","modified_gmt":"2024-08-22T12:44:52","slug":"dinamica-12-forca-de-atrito","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/formulario\/dinamica-12-forca-de-atrito\/","title":{"rendered":"Din\u00e2mica 12 – For\u00e7a de atrito"},"content":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis<\/b><\/span><\/span><\/span><\/p>\n

(dicas para vestibulares)<\/b><\/span><\/span><\/span><\/p>\n

Din\u00e2mica 12<\/b><\/span><\/span><\/span><\/p>\n

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Informa\u00e7\u00f5es \u00fateis <\/span><\/span><\/span>(dicas)<\/span><\/span><\/span><\/p>\n

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\u00a0<\/span>Constata-se\u00a0experimentalmente <\/b><\/span><\/span>que\u00a0<\/b><\/span><\/span>F<\/b><\/span><\/span>ate<\/b><\/span><\/sub><\/span>\u00a0> F<\/b><\/span><\/span>atd<\/b><\/span><\/sub><\/span>\u00a0e que\u00a0<\/b><\/span><\/span>\u03bc<\/b><\/span><\/span>e<\/b><\/span><\/sub><\/span>\u00a0>\u00a0\u03bc<\/b><\/span><\/span>d<\/b><\/span><\/sub><\/span>, pois as <\/b><\/span><\/span>reentr\u00e2ncias e sali\u00eancias das superf\u00edcies em contato\u00a0<\/b><\/span><\/span>est\u00e3o <\/b><\/span><\/span>mais encaixadas\u00a0com o corpo em\u00a0<\/b><\/span><\/span>repouso<\/b><\/span><\/span>,\u00a0dificultando mais<\/b><\/span><\/span> a movimenta\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/span><\/p>\n

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Quando um exerc\u00edcio\u00a0<\/b><\/span><\/span>n\u00e3o fizer distin\u00e7\u00e3o entre os coeficientes de atrito est\u00e1tico e din\u00e2mico<\/b><\/span><\/span>\u00a0<\/b><\/span><\/span>(cin\u00e9tico), devemos <\/b><\/span><\/span>sup\u00f4-los iguais, <\/b><\/span><\/span>ou seja,\u00a0<\/b><\/span><\/span>\u03bc<\/b><\/span><\/span>e<\/b><\/span><\/sub><\/span>\u00a0= \u03bc<\/b><\/span><\/span>d<\/b><\/span><\/sub><\/span>.<\/b><\/span><\/span><\/span><\/span><\/p>\n

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O processo \u00e9 repetido instant\u00e2nea e sucessivamente conforme o gr\u00e1fico acima.<\/b><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis (dicas para vestibulares) Din\u00e2mica 12 Informa\u00e7\u00f5es \u00fateis (dicas) \u00a0Constata-se\u00a0experimentalmente que\u00a0Fate\u00a0> Fatd\u00a0e que\u00a0\u03bce\u00a0>\u00a0\u03bcd, pois as reentr\u00e2ncias e sali\u00eancias das superf\u00edcies em contato\u00a0est\u00e3o mais encaixadas\u00a0com o corpo em\u00a0repouso,\u00a0dificultando mais a movimenta\u00e7\u00e3o. Quando um exerc\u00edcio\u00a0n\u00e3o fizer distin\u00e7\u00e3o entre os coeficientes de atrito est\u00e1tico e din\u00e2mico\u00a0(cin\u00e9tico), devemos sup\u00f4-los iguais, ou seja,\u00a0\u03bce\u00a0= \u03bcd. O processo \u00e9 repetido instant\u00e2nea<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3987,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-4011","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=4011"}],"version-history":[{"count":1,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4011\/revisions"}],"predecessor-version":[{"id":4012,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4011\/revisions\/4012"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3987"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=4011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}