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OCW Scholar - Physics I: Classical Mechanics
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OpenStudy (anonymous):
In the official solution of Module 12, Challenging Problems 2, at equation (2.2), I can tell Newton's 2nd law is applied. But I don't know how to derive the angular acceleration in (2.2). Don't laugh at me but I tried d(w*r)=w*dr + r*dw, which doesn't work.
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