[填空题]
The tires of a car make 65 revo f7)r haf) i g/cscllu61j*ce0lutions zh 0zd* qpey 9m3)al7pas the car reduces its speed uniformly from 95km/h to 45km/h The ti3pap9z yd*mlh7e 0z q)res 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