[填空题]
The tires of a car make 85 revolution trp t+o0sm3 02vvoxh);z, zhhs as the carqb v ,0i*3iiahtli8xpzc +38 v reduces its speed uniformly from 90km/h to 60km/h The tires have a diameter of 0.90 m. (a) What was the anh+q3pit zvici *8l03i 8x ,abvgular 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
