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Sept. 11, 2014, 4:38 a.m. -  craigsj

#!markdown Great, show your work then. When you sum the rotational and translational kinetic energies of a rolling wheel, you get E = m * v ^ 2. Why? Because omega = v / r. Larger wheels roll slower and the radius terms in the rotational equation cancel out. See here: <> I'm eager to see how your numbers agree with his in light of the fact that his cannot possibly be right.

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