[填空题]
The tires of a car make 65 revolutio 7joir3hhj340zbuj*syo( nc n i0iv/*ns as the car r;;w u9qu477gjk9odb noj htk8educes its speed uniformly from 95km/h to 45km/h The tires have uh9obw kk47djuogq;t9n 7j;8a 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