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Os tres corpos, A,B,C, representados na figura a seguir tem massas iguais , m = 8,0kg. O plano horizontal, onde se apoiam A e B, não oferece atrito , a roldana tem massa desprezivel e a aceleração local da gravidade pode ser considerada g=10/s2. A tração no fio que une os blocos A e B tem modulo :
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