A man is holding a 2.80-kg ball, as shown in the figure. The distance from the elbow joint to the ball is dball= 32.5 cm, and the distance from the elbow joint to the insertion of the triceps muscle is dM= 2.50cm. The mass of the lower arm, including the hand, is 3.60 kg, and its center of gravity is at a distance dCG= 13.6cm from the elbow joint. 1. Draw a free body diagram of the forearm. 2. What is the magnitude of the force FM, exerted by the triceps? 3. What is the force exerted by the humerus on the elbow joint?

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter7: Tubing And Piping
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A man is holding a 2.80-kg ball, as shown in the figure. The distance from the elbow joint to the ball is dball= 32.5 cm, and the distance from the elbow joint to the insertion of the triceps muscle is dM= 2.50cm. The mass of the lower arm, including the hand, is 3.60 kg, and its center of gravity is at a distance dCG= 13.6cm from the elbow joint.

1. Draw a free body diagram of the forearm.

2. What is the magnitude of the force FM, exerted by the triceps?

3. What is the force exerted by the humerus on the elbow joint?

d.
“ball
dco
'CG
CG
Elbow
joint
VFM
Transcribed Image Text:d. “ball dco 'CG CG Elbow joint VFM
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