[填空题]
The tires of a car mab7- n, i7zycxmke 85bxv:8:r0 b *9ubejkqem n+,nj revolutions as the car reduces its speed uniformly from 90km/hu bk +*b, qj8xnej:b mr:0n9ve to 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
