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A fan rotating at a constant velocity starts to increase its speed to 1570 ??? after...

A fan rotating at a constant velocity starts to increase its speed to 1570 ??? after making 3800 ??? under a constant angular acceleration of 0.256 ???/?^2 .

a. Determine the initial angular speed of the fan, in ???/?. b. How much time elapses during the 3800 ??? displacement

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