The tires of a car make 65 revolutions as the car reduces its speed uniformly from 95 3. km/h to 45 km/h. The tires have a diameter of 80cm. (a) What was the angular acceleration of the tires? (b) If the car continues to decelerate at this rate, how much more time is required for it to stop?

The tires of a car make 65 revolutions as the car reduces its speed uniformly from 95 3. km/h to 45 km/h. The tires have a diameter of 80cm. (a) What was the angular acceleration of the tires? (b) If the car continues to decelerate at this rate, how much more time is required for it to stop?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 60A

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Question

2.55
3.
The tires of a car make 65 revolutions as the car reduces its speed uniformly from 95
km/h to 45 km/h. The tires have a diameter of 80cm. (a) What was the angular acceleration of
the tires? (b) If the car continues to decelerate at this rate, how much more time is required for it
to stop?

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