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Solução Do Halliday 8.ed.vol.1. Cap.5 - Ch05 - P075

A solução do Halliday da 8ª edição volume 1. do Cap.5

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    December 2018

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    ch05 Halliday

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75. (a) Since the performer’s weight is (52 kg)(9.8 m/s2) = 510 N, the rope breaks. (b) Setting T = 425 N in Newton’s second law (with +y upward) leads to T − mg = ma Ÿ a = which yields |a| = 1.6 m/s2. T −g m