When you lift an object by moving only your forearm, the main lifting muscle in your arm is the biceps. Suppose the mass of a forearm with hand is 1.80 kg. If the biceps is connected to the forearm a distance of 2.50 cm from the elbow, how much force must the biceps exert to hold a 44.5 N (about 10 lbs) ball at the end of the forearm at distance of 35.0 cm from the elbow, with the forearm parallel to the floor, in Newtons

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Q: When you lift an object by moving only your forearm, the main lifting muscle in your arm is the…

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A: here, x1 = 2.15 cm = 0.0215 m the mass of forearm , m1 = 2.35 kg length , l = 0.445 m let the force…

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A: r_1 = 5.0 cm, r_2 = 12 cm, r_3 = 30 cm, m_a = 2.4kg, mb = 4.2 kg.