[填空题]
The tires of a car makr+n) cwc5l8sbe 85 revolutions as the car reduces its speer dev6)hw )(upd uniformly from 90km/h to 60kmd p)(hwr 6veu)/h The tires have 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
