College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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4/7
Att=0 a grinding wheel has an angular velocity of 24 rad's. It has a constant angular acceleration of
30 rad's' until a circuit breaker trips at t-2 s. From then on, it turns through 432 rad as it slows down to
stop at a constant angular acceleration.
(a) Find the angle through which the wheel turns between t=0 and the time it stopped.
(b) Find the acceleration of the wheel as it slows down after the circuit breaker trips.
(c) Find the time it took for the wheel to stop.
II
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Transcribed Image Text:4/7 Att=0 a grinding wheel has an angular velocity of 24 rad's. It has a constant angular acceleration of 30 rad's' until a circuit breaker trips at t-2 s. From then on, it turns through 432 rad as it slows down to stop at a constant angular acceleration. (a) Find the angle through which the wheel turns between t=0 and the time it stopped. (b) Find the acceleration of the wheel as it slows down after the circuit breaker trips. (c) Find the time it took for the wheel to stop. II
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