[填空题]
The tires of a car m fdpcv+m ly 562jvtb1.akj k( zzb6q/)ou.kcts3e 85 revolutions as the car reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter of 0.90 m. (a) What wass(kz j. oq3ct/6 u)bkz 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
