An electric fan is turned off, and its angular velocity decreases uniformly from 540 rev/min to 200 rev/min in a time in

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answerhappygod
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An electric fan is turned off, and its angular velocity decreases uniformly from 540 rev/min to 200 rev/min in a time in

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An electric fan is turned off, and its angular velocitydecreases uniformly from 540 rev/min to 200 rev/min in a timeinterval of length 3.80 s .
Find the angular acceleration in rev/s2.
Find the number of revolutions made by the motor in the timeinterval of length 3.80
How many more seconds are required for the fan to come to restif the angular acceleration remains constant at the valuecalculated in part A?
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