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Suppose the distance between the elbow joint and the point where the tendon from the biceps...

Suppose the distance between the elbow joint and the point where the tendon from the biceps attaches to the bone is 5 cm. Suppose also that the angle that the tendon makes with the bone is 80°. The arm has a mass of 2.0 kg and its center of mass is 15 cm from the elbow joint. If a 5.0 kg mass is in the hand, 40 cm from the elbow joint, what is the tension in the biceps muscle? Draw and label the forces acting on the arm directly on the diagram below. Write equations for the torques about the elbow joint to determine the tension

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