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A diagram of the human arm is shown holding a heavy iron ball (mass…

January 27, 2024

A diagram of the human arm is shown holding a heavy iron ball (mass 5.0 kg).

The triceps muscle connects to the forearm 3.0 cm to the left of the elbow joint, while the biceps muscle connects 5.0 cm to the right. Each of the muscles can exert an upward force on the forearm when needed. The forearm and hand together itself have a mass of 4.0 kg and a center of mass 15 cm to the right of the elbow joint.

А. When the ball is being held as shown, the force exerted by the triceps is

approximately zero. What magnitude force must the biceps be exerting?

arm..., ball, Diagram, heavy, holding, human, iron, MASS, Physics, shown

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A diagram of the human arm is shown holding a heavy iron ball (mass…

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