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July 29, 2014

Homework Help: physics

Posted by Anonymous on Thursday, February 9, 2012 at 11:51pm.

A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s. Find (a) the constant angular acceleration of the wheel and(b) the tangential acceleration of a point of a point on itsrim.

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