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Capítulo 9
Centro de Massa e
Momento Linear
(9-1)
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Centro de Massa
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Centro de Massa de Um Sistema de Partículas
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Centro de Massa: Corpos Sólidos
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Segunda Lei de Newton para um Sistema de Partículas
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Momento Linear
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Momento Linear de um Sistema de Partículas
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Colisão e Impulso
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Colisão e Impulso
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Colisões em Série
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Exemplo A Fig. 9-11a é uma vista superiorda trajetória de um carro de corrida aocolidir com um muro de proteção. Antesda colisão, o carro está se movendo comuma velocidade escalar vi = 70 m/s aolongo de uma linha reta que faz um ângulode 30° com o muro. Após a colisão, está semovendo com velocidade escalar vf = 50m/s ao longo de uma linha reta que faz umângulo de 10° com o muro. A massa m dopiloto é 80 kg.(a) Qual é o impulso J a que o piloto é
submetido no momento da colisão?(b) A colisão dura 14 ms. Qual é o moduloda força média que o piloto experimentadurante a colisão?
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Conservação do Momento Linear
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Momento e Energia Cinética em Colisões
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Colisões Inelástica em Uma Dimensão
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Colisões Elástica em Uma Dimensão
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Sistema de Massa Variável
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Cap. 9
3, 7, 17, 19, 21, 23, 29, 31, 35, 39, 41, 47, 49, 53, 61
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Exerc. 9-31
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Exerc. 9-35