FIS203 LISTA0 REVISAOVETORES.pdf - Departamento de Fsica...

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Departamento de Física – UFV FIS 203 – Revisão de vetores Questão 1 Dados os vetores ~ A = 4ˆ ı + ˆ e ~ B = - ı + ˆ , calcule: i) o vetor soma, ~ S = ~ A + ~ B ; ii) o módulo de ~ S ; iii) o vetor diferença, ~ D = ~ A - ~ B ; iv) o módulo de ~ D ; (Se o cálculo dos itens anteriores estiverem corretos, você encontrou | ~ D | > | ~ S | . Isso parece estranho? Em caso afirmativo, desenhe os vetores ~ A , ~ B , ~ S e ~ D , utilizando um sistema cartesiano, para ajudá-lo a interpretar os resultados.) v) o produto escalar ~ A · ~ B ; vi) o ângulo φ entre os vetores ~ A e ~ B ; vii) o ângulo θ A que o vetor ~ A faz com o eixo x . viii) o ângulo θ B que o vetor ~ B faz com o eixo x . ix) o produto vetorial ~ A × ~ B .
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Questão 2 Considere o sistema de coordenadas cartesianas XY , cuja a escala dos eixos está em unidades de distância a . Dados os pontos A e B nesse sistema, determine:
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