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At time t = 0 a grinding wheel has an angular velocity of 30.0 r a d / s . It ha

ID: 2250819 • Letter: A

Question

At time t=0 a grinding wheel has an angular velocity of 30.0rad/s . It has a constant angular acceleration of 26.0rad/s2 until a circuit breaker trips at time t = 2.40s . From then on, the wheel turns through an angle of 431rad as it coasts to a stop at constant angular deceleration.

Through what total angle did the wheel turn between t=0 and the time it stopped?

Through what total angle did the wheel turn between t=0 and the time it stopped?

What was the wheel's angular acceleration as it slowed down?

Explanation / Answer

jl

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