{"id":20405,"date":"2024-12-18T19:50:45","date_gmt":"2024-12-18T22:50:45","guid":{"rendered":"https:\/\/hangarmma.com.br\/blog\/?post_type=glossary&#038;p=20405"},"modified":"2025-02-21T13:54:06","modified_gmt":"2025-02-21T16:54:06","slug":"alavancas-de-terceira-classe","status":"publish","type":"glossary","link":"https:\/\/hangarmma.com.br\/blog\/alavancas-de-terceira-classe\/","title":{"rendered":"Alavancas de terceira classe"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Sua explica&#xE7;&#xE3;o cont&#xE9;m alguns erros e imprecis&#xF5;es que precisam ser corrigidos. Vou apresentar a explica&#xE7;&#xE3;o correta sobre alavancas de terceira classe:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As alavancas de terceira classe caracterizam-se por:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Configura&#xE7;&#xE3;o b&#xE1;sica:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Apoio em uma das extremidades<\/li>\n\n\n\n<li>Resist&#xEA;ncia na outra extremidade<\/li>\n\n\n\n<li>Esfor&#xE7;o aplicado entre o apoio e a resist&#xEA;ncia<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>Funcionamento:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enquanto o ponto de esfor&#xE7;o (E) se move uma pequena dist&#xE2;ncia, a resist&#xEA;ncia (R) percorre uma dist&#xE2;ncia maior<\/li>\n\n\n\n<li>A <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_b538845fda1d032e858fa6b8d5d0879c\" data-link=\"https:\/\/hangarmma.com.br\/blog\/velocidade\/\" href=\"https:\/\/hangarmma.com.br\/blog\/velocidade\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">velocidade<\/a> de R &#xE9; maior que E, pois cobre maior dist&#xE2;ncia no mesmo tempo<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Exemplo pr&#xE1;tico &#x2013; O bra&#xE7;o humano:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cotovelo: ponto de apoio<\/li>\n\n\n\n<li>B&#xED;ceps: aplica o esfor&#xE7;o no antebra&#xE7;o<\/li>\n\n\n\n<li>M&#xE3;o: representa a resist&#xEA;ncia<\/li>\n<\/ul>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>C&#xE1;lculo de for&#xE7;as: Utiliza-se a f&#xF3;rmula: L\/l = R\/E Onde: L = Comprimento do bra&#xE7;o da <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_69f4ac3df1824a239511deea5b6d0ad4\" data-link=\"https:\/\/hangarmma.com.br\/blog\/a-alavanca\/\" href=\"https:\/\/hangarmma.com.br\/blog\/a-alavanca\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">alavanca<\/a> l = Dist&#xE2;ncia do bra&#xE7;o da resist&#xEA;ncia<br>R = Resist&ecirc;ncia ou <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_4d4b52ec058dc185d3aeb8b31eb44116\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/peso\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/peso\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>peso<\/a> E = For&ccedil;a de esfor&ccedil;o<\/li>\n\n\n\n<li>Caracter&#xED;sticas importantes:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Geram desvantagem mec&#xE2;nica (for&#xE7;a menor que 1)<\/li>\n\n\n\n<li>S&#xE3;o projetadas para <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_b538845fda1d032e858fa6b8d5d0879c\" data-link=\"https:\/\/hangarmma.com.br\/blog\/velocidade\/\" href=\"https:\/\/hangarmma.com.br\/blog\/velocidade\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">velocidade<\/a>, n&#xE3;o para for&#xE7;a<\/li>\n\n\n\n<li>N&#xE3;o s&#xE3;o adequadas para mover cargas pesadas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">O exemplo do bra&ccedil;o levantando 10 libras demonstra que o m&uacute;sculo precisa exercer 180 libras de for&ccedil;a, ilustrando que esta configura&ccedil;&atilde;o n&atilde;o foi projetada para levantamento de <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_4d4b52ec058dc185d3aeb8b31eb44116\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/peso\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/peso\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>peso<\/a>, mas sim para movimentos r&aacute;pidos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sua explica\u00e7\u00e3o cont\u00e9m alguns erros e imprecis\u00f5es que precisam ser corrigidos. Vou apresentar a explica\u00e7\u00e3o correta sobre alavancas de terceira classe: As alavancas de terceira classe caracterizam-se por: O exemplo do bra\u00e7o levantando 10 libras demonstra que o m\u00fasculo precisa exercer 180 libras de for\u00e7a, ilustrando que esta configura\u00e7\u00e3o n\u00e3o foi projetada para levantamento de [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"glossary-categories":[],"glossary-tags":[],"class_list":["post-20405","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alavancas de terceira classe - HANGAR MMA<\/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:\/\/hangarmma.com.br\/blog\/alavancas-de-terceira-classe\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alavancas de terceira classe - HANGAR MMA\" \/>\n<meta property=\"og:description\" content=\"Sua explica\u00e7\u00e3o cont\u00e9m alguns erros e imprecis\u00f5es que precisam ser corrigidos. 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