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The tires of a car make 45 revolutions as the car reduces its speed uniformly from...

The tires of a car make 45 revolutions as the car reduces its speed uniformly from 120 km/h to 50 km/h. The tires have a diameter of 0.80 m.

(a) What was the angular acceleration of the tires?
____ rad/s2
(b) If the car continues to decelerate at this rate, how much more time is required for it to stop?
____s

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