[填空题]
The tires of a car make 85 revolutionv;e * s2. rtnbae .6aih+qfd1ps as the car /;ikt4c+gb:jeme7o6 fi+ li creduces its speed uniformly from 90km/h tf+bc l 7k4jice6/;+eitig m:o o 60km/h The tires have a diameter 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
