[填空题]
The tires of a car m1 2o*lbnls wd,ak qdi0; zu0 4(pbp+ ;zkejiz7;vxv7bnbe 85 revolutions as the car reduces its speed uniformly from 90km qxz;0ndb k 7z7e ;z4bjiup;i0+vpb(v/h to 60km/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
