[填空题]
The tires of a car make 85 revolutions av:4pkkj i 3s +f4z: ws-:8mpbcjh8flrs the car reduces i)kk7sb v6 6a*tnm+ywits speed uniformly from 90km/h to 60km/h The tires have wta6+ky n6ib*)mks 7 va 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
