Determine the angular acceleration of the tires

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A cooling fan is turned off when it is running at 870rev/min . It turns 700 revolutions before it comes to a stop.

What was the fan's angular acceleration, assumed constant?

How long did it take the fan to come to a complete stop?

The tires of a car make 69 revolutions as the car reduces its speed uniformly from 92km/h to 40km/h . The tires have a diameter of 0.80m.

What was the angular acceleration of the tires?

If the car continues to decelerate at this rate, how much more time is required for it to stop?

Reference no: EM13332259

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