The arm drawn in Fig. 5-16 supports a 4.0-kg sphere. The mass of the hand and forearm

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The arm drawn in Fig. 5-16 supports a 4.0-kg sphere. The mass of the hand and forearm together is 3.0 kg and its weight acts at a point 15 cm from the elbow. Assuming all the forces are vertical, determine the force exerted by the biceps muscle.4.5 cm FB 15 cm Triceps Biceps Radius Ulna c.g. 38 cm Fig. 5-16 c.g.

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