Wednesday
April 23, 2014

Homework Help: Physics

Posted by Elizabeth on Monday, April 11, 2011 at 9:52pm.

A person doing a chin-up weighs 710 N, disregarding the weight of the arms. During the first 26.5 cm of the lift, each arm exerts an upward force of 356 N on the torso. If the upward movement starts from rest, what is the person's speed at this point?

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