A pulley of 50cm radius on a motor is turning at 30 revsand


A pulley of 5.0cm radius, on a motor, is turning at 30 rev/sand slows down uniformly to 20 rev/s in 2.0s. Calculate

(a) the angular acceleration of the motor,

(b) the number of revolutions itmakes in this time, and 

(c) the length of belt it winds in this time.

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Physics: A pulley of 50cm radius on a motor is turning at 30 revsand
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