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April 20, 2014

Homework Help: Science

Posted by John on Wednesday, November 30, 2011 at 5:42pm.

At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm. The motor is then disconnected. How many revolutions are completed at t = 20 s?

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