[填空题]
The tires of a car make 85 revolution ++w;cw-4 sndv8(cpdk. yj rsls as the car reduces d+or/e 5-nhk;j psv2aj +,smnm/1 uaxits speed uniformly from 90km/h to 60km/h The tires have a diamexmnur ;e-,+aj1m5 n pkaj/v ho2d+ss/ ter of 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
