Approximately what force, FM, must the extensor muscle in the upper arm exert on the lower arm to hold a 6.9 kg shot put (Fig. 9-66)? Assume the lower arm has a mass of 2.8 kg and its CG is 13.0 cm from the pivot point.
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It depends upon where the muscle is attached to the bone. The figure is needed to answer the question.
And how exactly are you supposed to show a picture? This website does not allow website links in questions that you can ask and you cannot upload a picture to show.
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