[填空题]
The tires of a car make 85 sa7:hrel/ 3 gkb*gexfbx6yw7 7 -3/;zjuwf hjrevolutions as the car r dxr;sw4m 0l6reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter of 0.90 m. (a) What was the angular acceleration o;4lr0m sw6 xdrf 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
