[填空题]
The tires of a car makef- est u*dsd 5 gn667(j/-hphz0secmy 8/w*scx1vdanu)m k6om n 7d06f5 revolutions as the car reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter of 0./mnm*ocvus )1f6wxd n 76a0 kd90 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
