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An electric fan is turned off and its angular velocity decreases uniformly from 550 rev per min to 200 in rev per min time interval of length 4.50 sec?
Wiki User
∙ 13y ago
(550 - 200) rev per minute = -350 rev per minute / 60 sec per minute = (-35/6 rev per second) change in angular velocity
Angular acceleration = (change in angular velocity) / (time for the change) =
(-35/6 rev per second) x (2 pi radians per rev) / 4.5 seconds = -8.1449 radians per second2
Wiki User
∙ 13y ago
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