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Physics 16 Online
OpenStudy (anonymous):

A person holds a 1.42-N baseball in his hand, a distance of 34.0 cm from the elbow joint. The biceps, attached at a distance of 2.75 cm from the elbow, exerts an upward force of 12.6 N on the forearm. Consider the forearm and hand to be a uniform rod with a mass of 1.20 kg. (a) Calculate the net torque acting on it.

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