[填空题]
The tires of a car makeed-uyk6n:u z0i0 7v /tot3ksk 65 revolutions as the car reduces its speed unkvqe;3 76h b(olf:e:it/ydd l ou98eqiformly from 95km/h to 4:k/fu7qi3ht:b9e8vye edl6q lo(;o d 5km/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