[填空题]
The tires of a car make 85 revo;n3f rt9.et;qdfi d( ulutions as the car rey68pa uc-b:l mh+ri3 z/ t)brfduces its speed uniformly from 90km/h to 60km/h The tires have a diameterl -bbcmtuia:86+rz3)p f /hyr 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
