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A high-speed drill rotating ccw at 2300 rpm comes to a halt in 2.9 s .
9 years ago

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Damon
you do not say what the question is

average rpm during stop = 1150

turns to stop = 1150 *2.9/60

original radians/s
= 2300 revs/min*2 pi rad/rev *1min/60 s

= 241 radians/s
angular acceleration = -241/2.9

whatever
9 years ago

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