An electric fan is turned off and its angular velocity


An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in a time interval of length 4.00 s.

a) Find the angular acceleration rev/s2

b) Find the number of revolutions made by the motor in the time interval of length 4.00s.

c) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part a)

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Physics: An electric fan is turned off and its angular velocity
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