{"id":208,"date":"2023-07-11T22:02:35","date_gmt":"2023-07-11T22:02:35","guid":{"rendered":"https:\/\/mathority.org\/pt\/subtrair-vetores-numericamente-exemplos-graficos-exercicio-resolvido-subtrair\/"},"modified":"2023-07-11T22:02:35","modified_gmt":"2023-07-11T22:02:35","slug":"subtrair-vetores-numericamente-exemplos-graficos-exercicio-resolvido-subtrair","status":"publish","type":"post","link":"https:\/\/mathority.org\/pt\/subtrair-vetores-numericamente-exemplos-graficos-exercicio-resolvido-subtrair\/","title":{"rendered":"Subtra\u00e7\u00e3o vetorial"},"content":{"rendered":"<p>Nesta p\u00e1gina voc\u00ea ver\u00e1 como subtrair dois vetores, tanto gr\u00e1fica quanto numericamente. Para subtra\u00ed-los graficamente existem tr\u00eas m\u00e9todos: o paralelogramo, o tri\u00e2ngulo e o pol\u00edgono. Aqui voc\u00ea pode diferenciar as vantagens e desvantagens de cada m\u00e9todo. Al\u00e9m disso, voc\u00ea encontrar\u00e1 exemplos, exerc\u00edcios e problemas resolvidos passo a passo. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfcomo-se-restan-dos-vectores-graficamente\"><\/span> Como subtrair graficamente dois vetores?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Existem v\u00e1rias maneiras de subtrair vetores geometricamente. Obviamente, com todos eles se obt\u00e9m o mesmo resultado, mas explicaremos todos os m\u00e9todos para que voc\u00ea escolha o que preferir. \ud83d\udc4c<\/p>\n<p> Para subtrair apenas 2 vetores, existem dois procedimentos gr\u00e1ficos: o <strong>m\u00e9todo do paralelogramo<\/strong> e o <strong>m\u00e9todo do tri\u00e2ngulo<\/strong> . Por\u00e9m, se quisermos resolver a subtra\u00e7\u00e3o de 3 ou mais vetores, precisamos usar o <strong>m\u00e9todo do pol\u00edgono<\/strong> .<\/p>\n<p> Ent\u00e3o, e sem mais delongas, voc\u00ea tem as explica\u00e7\u00f5es de todos esses m\u00e9todos abaixo.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"metodo-o-regla-del-paralelogramo\"><\/span> M\u00e9todo ou regra do paralelogramo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> A <strong>regra do paralelogramo<\/strong> ou <strong>m\u00e9todo do paralelogramo<\/strong> \u00e9 um procedimento que permite encontrar a subtra\u00e7\u00e3o de dois vetores atrav\u00e9s de sua representa\u00e7\u00e3o gr\u00e1fica de uma forma muito simples. As etapas a seguir para aplicar este processo s\u00e3o as seguintes:<\/p>\n<ol style=\"color:#ff6f00; font-weight: bold;>\n<li><span style=\" color:#262626;font-weight:=\"\" normal;\"=\"\">\n<li style=\"margin-bottom:18px\"><span style=\"color:#000000;font-weight: normal;\">Primeiramente representamos os dois vetores no gr\u00e1fico e os posicionamos no mesmo ponto de aplica\u00e7\u00e3o, ou seja, colocamos as origens de ambos os vetores no mesmo ponto.<\/span><\/li>\n<li style=\"margin-bottom:18px\"> <span style=\"color:#000000;font-weight: normal;\">Em segundo lugar, desenhamos o vetor oposto ao vetor que \u00e9 subtra\u00eddo na opera\u00e7\u00e3o, ou seja, invertemos o vetor que est\u00e1 subtraindo.<\/span><\/li>\n<li style=\"margin-bottom:18px\"> <span style=\"color:#000000;font-weight: normal;\">Em seguida, tra\u00e7amos uma linha paralela ao vetor com sinal alterado no final do vetor que \u00e9 adicionado. E repetimos o processo com o outro vetor. Para que obtenhamos o desenho de um paralelogramo (da\u00ed o nome da regra).<\/span><\/li>\n<li> <span style=\"color:#000000;font-weight: normal;\">Por fim, o resultado da subtra\u00e7\u00e3o ser\u00e1 o vetor que vai da origem comum dos dois vetores at\u00e9 o ponto onde as duas retas paralelas se cruzam.<\/span><\/li>\n<\/ol>\n<p> Considere o seguinte exemplo gen\u00e9rico em que dois vetores s\u00e3o subtra\u00eddos usando o m\u00e9todo do paralelogramo: <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-soustraire-des-vecteurs-methode-du-parallelogramme.webp\" alt=\"\" class=\"wp-image-202\" width=\"473\" height=\"178\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"metodo-o-regla-del-triangulo\"><\/span> M\u00e9todo ou regra do tri\u00e2ngulo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> O <strong>m\u00e9todo do tri\u00e2ngulo<\/strong> \u00e9 outro procedimento com o qual dois vetores podem ser subtra\u00eddos de seu gr\u00e1fico. Neste caso, os passos a seguir s\u00e3o:<\/p>\n<ol style=\"color:#ff6f00; font-weight: bold;>\n<li><span style=\" color:#262626;font-weight:=\"\" normal;\"=\"\">\n<li style=\"margin-bottom:18px\"><span style=\"color:#000000;font-weight: normal;\">Coloque os dois vetores no mesmo ponto de aplica\u00e7\u00e3o, ou seja, de forma que os dois vetores tenham o mesmo ponto de origem.<\/span><\/li>\n<li> <span style=\"color:#000000;font-weight: normal;\">O resultado da subtra\u00e7\u00e3o vetorial \u00e9 o segmento que vai do final do vetor subtrator at\u00e9 o final do outro vetor. Se voc\u00ea olhar atentamente, um tri\u00e2ngulo \u00e9 conclu\u00eddo com os dois vetores subtra\u00eddos e o vetor subtra\u00eddo.<\/span><\/li>\n<\/ol>\n<p> Aqui est\u00e1 um exemplo de subtra\u00e7\u00e3o vetorial usando o m\u00e9todo do tri\u00e2ngulo: <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-soustraire-deux-vecteurs-tete-queue-methode.webp\" alt=\"como subtrair dois vetores com o m\u00e9todo cabe\u00e7a e cauda\" class=\"wp-image-210\" width=\"215\" height=\"175\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p> Esta forma de subtrair vetores \u00e9 semelhante ao <em>m\u00e9todo head and tail<\/em> usado para <a href=\"https:\/\/mathority.org\/pt\/soma-de-vetores-exemplos-resolvidos-graficamente-numericamente-exercicios-adicionar\/\">adicionar vetores<\/a> .<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"metodo-del-poligono\"><\/span> m\u00e9todo pol\u00edgono<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Depois de vermos como resolver graficamente a subtra\u00e7\u00e3o de dois vetores, veremos como isso \u00e9 feito quando temos mais de dois vetores.<\/p>\n<p> Quando voc\u00ea deseja subtrair tr\u00eas ou mais vetores, existe uma t\u00e9cnica para ir mais r\u00e1pido no c\u00e1lculo e subtrair todos os vetores de uma vez. Esta t\u00e9cnica \u00e9 chamada de <strong>m\u00e9todo do pol\u00edgono<\/strong> e consiste em aplicar sucessivamente o m\u00e9todo cabe\u00e7a-cauda de adi\u00e7\u00e3o de vetores.<\/p>\n<p> Agora voc\u00ea provavelmente est\u00e1 pensando: <em>adicionando<\/em> vetores? Est\u00e1 corrigido incorretamente&#8230; Bem, n\u00e3o! eh eh<\/p>\n<p> Acontece que subtrair dois vetores \u00e9 o mesmo que adicionar um vetor mais o vetor oposto (ou negativo) do vetor subtra\u00eddo. Isso se deve \u00e0s propriedades de adi\u00e7\u00e3o e subtra\u00e7\u00e3o dos vetores:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-589f7876633ebdb52b6e3055f19facf4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a} - \\vv{b} =\\vv{a} +(-\\vv{b})\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"128\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> Portanto, as etapas que precisamos seguir para subtrair 3 ou mais vetores com o m\u00e9todo do pol\u00edgono s\u00e3o:<\/p>\n<ol style=\"color:#ff6f00; font-weight: bold;>\n<li><span style=\" color:#262626;font-weight:=\"\" normal;\"=\"\">\n<li style=\"margin-bottom:18px\"><span style=\"color:#000000;font-weight: normal;\">Primeiro, precisamos encontrar o vetor inverso de cada vetor de subtra\u00e7\u00e3o. \u00c9 t\u00e3o simples quanto inverter a dire\u00e7\u00e3o e a dire\u00e7\u00e3o de todos os vetores subtra\u00eddos.<\/span><\/li>\n<li style=\"margin-bottom:18px\"> <span style=\"color:#000000;font-weight: normal;\">Em seguida, colocamos cada vetor oposto pr\u00f3ximo ao vetor que voc\u00ea n\u00e3o subtrai, um ap\u00f3s o outro. Para que a origem de um vetor coincida com o final de outro vetor.<\/span><\/li>\n<li> <span style=\"color:#000000;font-weight: normal;\">Por fim, o resultado da subtra\u00e7\u00e3o vetorial \u00e9 o vetor obtido unindo o in\u00edcio do primeiro vetor ao final do \u00faltimo vetor.<\/span><\/li>\n<\/ol>\n<p> Veja o exemplo a seguir onde uma subtra\u00e7\u00e3o \u00e9 feita com 4 vetores: <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/soustraction-vectorielle-avec-la-methode-des-polygones.webp\" alt=\"subtra\u00e7\u00e3o vetorial com o m\u00e9todo do pol\u00edgono\" class=\"wp-image-245\" width=\"387\" height=\"409\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p> Observe que para encontrar o vetor oposto de um vetor, os dois componentes desse vetor devem mudar de sinal. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfcomo-calcular-la-resta-de-dos-vectores-numericamente\"><\/span>Como calcular numericamente a subtra\u00e7\u00e3o de dois vetores?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Uma vez que j\u00e1 sabemos como subtrair vetores do gr\u00e1fico, veremos como calcular uma subtra\u00e7\u00e3o vetorial numericamente ou algebricamente. <\/p>\n<div style=\"background-color:#FFCC8080;padding-top: 20px; padding-bottom: 0.5px; padding-right: 40px; padding-left: 30px; border: 2px solid #FFB74D; border-radius:20px;\">\n<p style=\"text-align:left\"> Para subtrair numericamente dois vetores, voc\u00ea deve subtrair seus respectivos componentes. Ou, em outras palavras, as coordenadas X dos dois vetores s\u00e3o subtra\u00eddas uma da outra e da mesma forma com as coordenadas Y.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-12a3399efa42b0229dc8beb0981afabe_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{u}} = (\\text{u}_x,\\text{u}_y) \\qquad \\vv{\\text{v}}=(\\text{v}_x, \\text{v}_y)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"216\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a2e5b76121e78b4d8bc82926f64579cd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{u}} - \\vv{\\text{v}} = (\\text{u}_x - \\text{v}_x \\ , \\ \\text{u}_y - \\text{v}_y)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"212\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<\/div>\n<p> Por exemplo, subtra\u00e7\u00e3o entre vetores<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bf1643b86e90644015d2525e07598246_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{u}} = (4,1)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"72\" style=\"vertical-align: -5px;\"><\/p>\n<p> E<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-616f78d4f40e55f8073ffbc73140dd09_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{v}}=(2, 3)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"72\" style=\"vertical-align: -5px;\"><\/p>\n<p> Leste: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-af5a0aee4fb8cf2e9bccbfc5a511cae7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{u}} = (4,1) \\qquad \\vv{\\text{v}}=(2, 3)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"180\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a5497555b19f5d230433a622a03704ee_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{aligned} \\vv{\\text{u}} - \\vv{\\text{v}}&amp; =(4,1) -(2, 3) \\\\[2ex] &amp; = (4-2,1-3) \\\\[2ex] &amp; = \\bm{(2,-2)} \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"103\" width=\"164\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ejercicios-resueltos-de-resta-de-vectores\"><\/span> Problemas resolvidos de subtra\u00e7\u00e3o vetorial<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\"> Exerc\u00edcio 1<\/h3>\n<p> Calcule a subtra\u00e7\u00e3o vetorial graficamente<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e947b57f79361ad4bbea4a71d3b81034_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> menos <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8ccad2212ddd855bf29b2051743ccdcf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{b}:\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercice-resolu-de-soustraction-de-vecteurs.webp\" alt=\"exerc\u00edcio resolvido passo a passo em subtra\u00e7\u00e3o vetorial\" class=\"wp-image-232\" width=\"256\" height=\"255\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E4F0FE\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E4F0FE\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>veja solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Para subtrair os dois vetores, usaremos o m\u00e9todo do tri\u00e2ngulo. Os pontos j\u00e1 est\u00e3o colocados no mesmo ponto de aplica\u00e7\u00e3o (origem das coordenadas), ent\u00e3o o resultado da subtra\u00e7\u00e3o ser\u00e1 o vetor que vai do final de<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2dc9458f14eb7d47453c704b14299ef0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{b}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p> no fim de <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bb5fcdd67f71d1efdb945f15bc5cf449_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}.\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/vecteur-soustraction-exemple.webp\" alt=\"exemplo de subtra\u00e7\u00e3o vetorial\" class=\"wp-image-233\" width=\"259\" height=\"252\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> Exerc\u00edcio 2<\/h3>\n<p> Encontre a subtra\u00e7\u00e3o de vetores graficamente<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e947b57f79361ad4bbea4a71d3b81034_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> menos <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8ccad2212ddd855bf29b2051743ccdcf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{b}:\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"17\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/probleme-resolu-soustraction-de-vecteurs.webp\" alt=\"problema de subtra\u00e7\u00e3o vetorial resolvido\" class=\"wp-image-239\" width=\"256\" height=\"283\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E4F0FE\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E4F0FE\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>veja solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Para subtrair os dois vetores, usaremos a regra do tri\u00e2ngulo. Os pontos j\u00e1 est\u00e3o colocados no mesmo ponto de aplica\u00e7\u00e3o (no in\u00edcio do eixo X e no eixo Y), ent\u00e3o o resultado da subtra\u00e7\u00e3o ser\u00e1 o vetor que vai do final do<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2dc9458f14eb7d47453c704b14299ef0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{b}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p> no fim de <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bb5fcdd67f71d1efdb945f15bc5cf449_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}.\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercices-resolus-de-soustraction-de-vecteurs.webp\" alt=\"exerc\u00edcios de subtra\u00e7\u00e3o de matrizes resolvidos passo a passo\" class=\"wp-image-240\" width=\"292\" height=\"284\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> Exerc\u00edcio 3<\/h3>\n<p> Resolva graficamente a seguinte opera\u00e7\u00e3o vetorial: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d99594e72f3f00c663b9fb505dd2e7c0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}-\\vv{b}-\\vv{c}-\\vv{d}-\\vv{e}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"129\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-soustraire-deux-vecteurs.webp\" alt=\"como subtrair dois vetores\" class=\"wp-image-247\" width=\"261\" height=\"321\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E4F0FE\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E4F0FE\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>veja solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Como existem mais de 2 vetores, usaremos a regra do pol\u00edgono para resolver a subtra\u00e7\u00e3o vetorial. Para fazer isso, precisamos representar os vetores opostos dos vetores restantes, um ap\u00f3s o outro. E o resultado ser\u00e1 o vetor que come\u00e7a na origem do vetor<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e947b57f79361ad4bbea4a71d3b81034_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> at\u00e9 onde termina o \u00faltimo vetor oposto. <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/soustraire-entre-deux-ou-plusieurs-vecteurs-graphiquement.webp\" alt=\"subtrair entre dois ou mais vetores graficamente\" class=\"wp-image-248\" width=\"402\" height=\"456\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> Exerc\u00edcio 4<\/h3>\n<p> Determine numericamente o resultado da subtra\u00e7\u00e3o dos seguintes vetores: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e7f7faa7413586b0fd035a3a877cb460_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}=(-1,5) \\qquad \\vv{b}=(3,-2)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"206\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-468d40fb2071d3f49a76d9bf24829c48_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}-\\vv{b}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"39\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E4F0FE\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E4F0FE\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>veja solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Para subtrair numericamente dois vetores, voc\u00ea deve subtrair suas respectivas coordenadas: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b64aac805c6565b57ac1d33977988013_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{aligned} \\vv{a}-\\vv{b}&amp; =(-1,5)-(3,-2) \\\\[2ex] &amp; = (-1-3 ,5-(-2))\\\\[2ex] &amp; = (-4 ,5+2)\\\\[2ex] &amp; =\\bm{(-4,7)} \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"145\" width=\"204\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">Exerc\u00edcio 5<\/h3>\n<p> Resolva analiticamente a seguinte opera\u00e7\u00e3o vetorial: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3ab6e7f568c55a171b450555ad689c17_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}=(2,4) \\qquad \\vv{b}=(-1,4)\\qquad \\vv{c}=(0,2)\\qquad \\vv{d}=(3,-7)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"419\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-83c6aa484d638a87e9612327bfd2876e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{a}-\\vv{b} -\\vv{c}-\\vv{d}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"100\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E4F0FE\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E4F0FE\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>veja solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Para subtrair vetores numericamente (ou analiticamente) devemos subtrair seus respectivos componentes: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fa640e47728e968a9626c295f237f93c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{aligned} \\vv{a}-\\vv{b}-\\vv{d}-\\vv{d}&amp; =(2,4)-(-1,4)-(0,2)-(3,-7) \\\\[2ex] &amp; =(3,0)-(0,2)-(3,-7) \\\\[2ex] &amp; =(3,-2)-(3,-7) \\\\[2ex]&amp; =\\bm{(0,5)} \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"145\" width=\"374\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nesta p\u00e1gina voc\u00ea ver\u00e1 como subtrair dois vetores, tanto gr\u00e1fica quanto numericamente. Para subtra\u00ed-los graficamente existem tr\u00eas m\u00e9todos: o paralelogramo, o tri\u00e2ngulo e o pol\u00edgono. Aqui voc\u00ea pode diferenciar as vantagens e desvantagens de cada m\u00e9todo. Al\u00e9m disso, voc\u00ea encontrar\u00e1 exemplos, exerc\u00edcios e problemas resolvidos passo a passo. Como subtrair graficamente dois vetores? Existem v\u00e1rias &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/pt\/subtrair-vetores-numericamente-exemplos-graficos-exercicio-resolvido-subtrair\/\"> <span class=\"screen-reader-text\">Subtra\u00e7\u00e3o vetorial<\/span> Leia mais &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[27],"tags":[],"class_list":["post-208","post","type-post","status-publish","format-standard","hentry","category-vetores"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Subtra\u00e7\u00e3o vetorial - Mathority<\/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:\/\/mathority.org\/pt\/subtrair-vetores-numericamente-exemplos-graficos-exercicio-resolvido-subtrair\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Subtra\u00e7\u00e3o vetorial - Mathority\" \/>\n<meta property=\"og:description\" content=\"Nesta p\u00e1gina voc\u00ea ver\u00e1 como subtrair dois vetores, tanto gr\u00e1fica quanto numericamente. 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Para subtra\u00ed-los graficamente existem tr\u00eas m\u00e9todos: o paralelogramo, o tri\u00e2ngulo e o pol\u00edgono. Aqui voc\u00ea pode diferenciar as vantagens e desvantagens de cada m\u00e9todo. Al\u00e9m disso, voc\u00ea encontrar\u00e1 exemplos, exerc\u00edcios e problemas resolvidos passo a passo. Como subtrair graficamente dois vetores? 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