Describe how work is done by a skater pulling in her arms during a spin. In particular,
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Describe how work is done by a skater pulling in her arms during a spin. In particular, identify the force she exerts on each arm to pull it in and the distance each moves, noting that a component of the force is in the direction moved. Why is angular momentum not increased by this action?
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When a skater pulls in her arms during a spin she is doing work against the centripetal force that keeps her arms moving in a circle The centripetal f...View the full answer
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