A 6.0 kg mass is held in the hand, with the upper arm vertical and the forearm bent 30° below the horizontal. The pivot is at the elbow, and the bicep muscle acts in a vertical line 5 cm in front of the pivot. The forearm is 40 cm long and has a mass of 2.5 kg, and may be assumed to have its centre of mass in the middle. How much force must a bicep muscle exert to maintain this configuration?

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The Answer of A 6.0 kg mass is held in the hand, with the upper arm vertical and the forearm bent 30° below the horizontal. The pivot is at the elbow, and the bicep muscle acts in a vertical line 5 cm in front of the pivot. The forearm is 40 cm long and has a mass of 2.5 kg, and may be assumed to have its centre of mass in the middle. How much force must a bicep muscle exert to maintain this configuration?

A 60 Kg Mass Is Held in the Hand, with the the Upper