[填空题]
The tires of a car makelh xkf xqb,,lb:9tir;a; se294:y ylldo*) di 85 revoluti.u*a8 jt.tbzz ons as the car reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter of 0.90 m. (a) What was the angb* a.jtz8 z.utular 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
