In the drawing, the arrows indicate the forces on the forearm: at the elbow, by
ID: 1367356 • Letter: I
Question
In the drawing, the arrows indicate the forces on the forearm: at the elbow, by the biceps muscle, the weight of the arm, and the ball. The distance from the elbow to the biceps muscle is 5.0 cm, distance from the elbow to the ball is 35 cm. The angle of the forearm is 45 degree below the horizontal. The weight of the arm is small and can be ignored. All the forces are vertical. The weight of the ball is 50 N. Draw a free-body diagram of the forearm. What forces does the biceps muscle exert on the forearm Find the magnitude of the force that the elbow joint exerts on the forearm.Explanation / Answer
In the drawing, the arrows indicate the forces on the forearm: at the elbow, by