#15. A high-speed drill rotating counter clock wise at 2400 [rpm] comes to a stop in 2.5 [s]. a) what is the drill's angular acceleration? b) how many revolutions does it make before it stops?

College Physics
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ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
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Chapter7: Rotational Motion And The Law Of Gravity
Section: Chapter Questions
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#15. A high-speed drill rotating counter clock wise at 2400 [rpm] comes to a stop in
2.5 [s].
a) what is the drill's angular acceleration?
b) how many revolutions does it make before it stops?
Transcribed Image Text:#15. A high-speed drill rotating counter clock wise at 2400 [rpm] comes to a stop in 2.5 [s]. a) what is the drill's angular acceleration? b) how many revolutions does it make before it stops?
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