[填空题]
The tires of a car make 85 rsdpk31zc,,( .0mc-d8 u j1 zcigoagsrevolutions as the car reduc rywc*7 ml-zy*es its speed uniformly from 90km/h to 60km/h The tires have yzm c*wr-*y7l a diameter of 0.90 m. (a) What was the angular acceleration of each tire? $\approx$ $rad/s^2$(round to two decimal place) (b) If the car continues to decelerate at this rate, how much more time is required for it to stop? s
Post time 2025-2-18 20:00:22
