gc textbook chapter 8 Rotational Motion (id: aa0a0708f)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

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The tires of a car make 6t -0n/ ,bvzhtne7l3: qx lpx.g5don 2 0b+m7m ak0r/lofat50qs revolutions as the car reduces its speed uniformly from 95d5qb2ommas f r700 k0nt+oa/lkm/h to 45km/h The tires have a diameter of 0.80 m.
(a) What was the angular acceleration of the tires? $\approx$    $rad/s^2$
(b) If the car continues to decelerate at this rate, how much more time is required for it to stop?    s

参考答案:
空格1: -4.1±2%  空格2: 7.6±2% 


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