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July 3, 2015

Homework Help: Physics

Posted by Anonymous on Sunday, February 10, 2008 at 11:48pm.

8. When a person stands on a rotating merry go round, the frictional force exerted on the person by the merry go round is
(A) greater in magnitude than the frictional force exerted on the person by the merry go round
(B) opposite in direction to the frictional force exerted on the merry go round by the person
(C) directed away from the center of the merry go round
(D) zero if the rate of rotation is constant
(E) independent of the person's mass

I have that the answer is b, but why isn't it E?

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