[填空题]
The tires of a car make 65 revolutions as th2iuohe t8 ;y2b ozzjo62yw zmw1g16b0ekwb3evk ezp6/9p ; l-e car reduces its speed uniformly from 95e - w le9z/b;e3kvkp6pkm/h to 45km/h The tires have a diameter of 0.80 m. (a) What was the angular acceleration of the tires? $\approx$ $rad/s^2$ (b) If the car continues to decelerate at this rate, how much more time is required for it to stop? s