[填空题]
The tires of a car make 85 revolu ;i-1z)szw mc (x9 tr,agfokm+tions as t)wrk(pvx 1.xdx4km4+gpjso (/ w sge,he car reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter ersm (wox1wpgv 4) /x,pdk(4g. +jksxof 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
