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Exercício de Quando a corda tem peso...?
Exercício:
Um bloco de massa M é puxado ao longo de uma superfície horizontal lisa por uma corda de massa m, conforme indicado na figura abaixo. Uma força horizontal P é aplicada a uma das extremidades da corda. (a) Mostre que a corda deve vergar, ainda que de modo quase imperceptível. Em seguida, desprezando a deflexão da corda, determine: (b) a aceleração da corda e do bloco. (c) a força que a corda exerce sobre o bloco M.
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