A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 10 rev/s; 60 revolutions later, its angular speed is 15 rev/s. Calculate (a) the angular acceleration, (b) the time required to complete the 60 revolutions, (c) the time required to reach the 10 rev/s angular speed, and (d) the number of revolutions from rest until the time the disk reaches the 10 rev/s angular speed.

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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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A disk rotates about its central axis starting from rest and
accelerates with constant angular acceleration. At one time it is rotating
at 10 rev/s; 60 revolutions later, its angular speed is 15 rev/s.
Calculate (a) the angular acceleration, (b) the time required to
complete the 60 revolutions, (c) the time required to reach the
10 rev/s angular speed, and (d) the number of revolutions from rest
until the time the disk reaches the 10 rev/s angular speed.

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