[填空题]
The tires of a car make 65 revnway i ri2c9)7otv:f qhzk 8l gv/7z*.ilutions as the car reduces its speed uniformly from 95km/h to 45km/h The tires have : q/h kit7*z.8vlzgfv 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
