(a) If the biceps muscle in Figure 12.10 were attached farther out toward the wrist, would the torque generated by the muscle about the pivot get greater, get smaller, or stay the same?

(b) As the hand is raised above the level of the elbow, so that the forearm makes an angle of \(15^{\circ}\) with the horizontal, does the arm's capacity to lift objects increase, decrease, or stay the same?

Transcribed Image Text:

Figure 12.10 Exercise 12.3. pivot biceps muscle forearm