Posted by **sarah** on Wednesday, November 4, 2009 at 9:23am.

A grinding wheel in the shape of a solid disk is 0.200 m in diameter and has a mass of 3.00 kg. The wheel is rotating at 2200 rpm about an axis through its center. (a) what is its kinetic energy? (b) How far would it have to drop in free fall to acquire the same amount of kinetic energy?

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