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Exercício de Plano Inclinado / Atrito
Exercício:
O bloco A de massa m = 3,0 kg está apoiado num plano inclinado que forma um ângulo t com a horizontal. O bloco A está na iminência de escorregar para cima. O coeficiente de atrito estático entre o bloco A e o plano é ue = 0,50. Dados: sen t = 0,60; cos t = 0,80; g=10m/s². Considere o fio e a polia ideais. Determine, nessas condições o peso Pb do bloco B.
http://img*267.imageshack.us/img267/2717/probleminha.jpg
Tirar o asterisco do link.
bloca A bloco B
m=3,0
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