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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Starting from rest, a 12-cm-diameter compact disk takes 2.7 s to reach its operating angular velocity of 1900 rpm. Assume that the angular acceleration is constant. The disk's moment of inertia is 2.5×10^−5kgm^2
.
Part A
How much torque is applied to the disk?
Â
Part B
How many revolutions does it make before reaching full speed?
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