December 2, 2015

Homework Help: physivs

Posted by Anonymous on Saturday, December 4, 2010 at 5:45pm.

A certain CD has a playing time of 68 minutes. When the music starts, the CD is rotating at an angular speed of 4.8 102 revolutions per minute (rpm). At the end of the music, the CD is rotating at 2.1 102 rpm. Find the magnitude of the average angular acceleration of the CD. Express your answer in rad/s2.

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