Title: An athlete holds a 7.5-kg shot put in his hand with his lower arm horizontal, as shown in the ...
Post by: guzmanmichelang on Dec 14, 2018
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
M in the figure) in the upper arm exert on the lower arm?• 100 N
• 1500 N
• 500 N
• 1000 N
Title: An athlete holds a 7.5-kg shot put in his hand with his lower arm horizontal, as shown in the ...
Post by: makeshsvm on Dec 14, 2018
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Title: Re: An athlete holds a 7.5-kg shot put in his hand with his lower arm horizontal, as shown in the ...
Post by: SKatsnelson14 on Apr 20, 2020
thank you