What was the angular acceleration

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The tires of a car make 75 revolutions asthe car reduces its speed uniformly from 100 km/h to 50 km/h. Thetires have a diameter of 0.80 m.
a) What was the angular acceleration?
rad/s2
b) If the car continues to decelerate at this rate, how much moretime is required for it to stop?

Reference no: EM13556328

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