[填空题]
The tires of a car make1rl zpw0*p.)nl xb ,/ sdo2kzw 85 revolutions as the car reduces i4 8fc6+urx1h ug/g0g ws;bgppts speed uniformly from 90km/h to 60km/h The tires have au f0pp/ rg;suc816+4gw ghxb g 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
