[填空题]
The tires of a car make 65 revvd, yi7ib6zkzj, o41 xolutions as the car reduces i4tdo99s ,83 o gszo9 6f5jg yg(ylddsnts speed uniformly from 95km/h to 45km ysfos,ggdg5ylz6nj3( 99tdos o984 d/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