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Statement of a problem № 2563

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A pulley of 5.0-cm radius, on a motor, is turning at 30 rev/s and slows down uniformly to 20 rev/s in 2.0 s. Calculate (a) the angular acceleration of the motor, (b) the number of revolutions it makes in this time, and (c) the length of belt it winds in this time.

Solution:
A pulley of 5.0-cm radius, on a motor, is turning at 30 rev/s and slows down uni

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