A wheel turning with an angular speed of 30 rev/s is brought to rest with a constant acceleration. lt turns 60 rev/s before it stops. What is its angular acceleration? What time elapses before it stops?

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A wheel turning with an angular speed of 30 rev/s is brought to rest with a constant acceleration. lt turns 60 rev/s before it stops. What is its angular acceleration? What time elapses before it stops?

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