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guzmanmichelang guzmanmichelang
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5 years ago
An athlete holds a 7.5-kg shot put in his hand with his lower arm horizontal, as shown in the figure. His lower arm has a mass of 2.8 kg and its center of gravity (or center of mass) is 12 cm from the elbow-joint pivot. How much force must the extensor muscle (which is M in the figure) in the upper arm exert on the lower arm?


• 100 N

• 1500 N

• 500 N

• 1000 N
Textbook 
College Physics: A Strategic Approach

College Physics: A Strategic Approach


Edition: 3rd
Authors:
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makeshsvmmakeshsvm
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Posts: 191
5 years ago
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3 years ago
thank you
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