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July 25, 2014

Homework Help: physics

Posted by kate on Thursday, October 21, 2010 at 1:03pm.

An athlete at the gym holds a 1.2 kg steel ball in his hand. His arm is 64 cm long and has a mass of 4.0 kg. What is the magnitude of the torque about his shoulder if he holds his arm in each of the following ways?

1. straight but 30 degrees below horizonal?

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