[填空题]
The tires of a car make 65 revolurd6*wv gz*fc3p9oo 0k4 zdr e2s 5xfv-i0eq :e29u kps(u9f9k mfhzatoy 93*rtions as the car reduces its speed uniformly from 95km/h to 45km/faif uekp9rom ky* 9shue z 99:(t03q2h 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