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April 19, 2014

Homework Help: Physics

Posted by John on Monday, November 28, 2011 at 4:26pm.

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?

number of revolutions?

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