During a very quick stop, a car decelerates at 6.75 m/s. (a) What is the angular acceleration (in rad/s2) of its 0.250 m radius tires, assuming they do not slip on the pavement? (Indicate the direction with the sign of your answer. Assume the tires initially rotated in the positive direction.) -27 v rad/s? (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity is 92.0 rad/s? revolutions (c) How long (in s) does the car take to stop completely? 3.407 (d) What distance (in m) does the car travel in this time? 78.361 X m (e) What was the car's initial velocity (in m/s)? (Indicate the direction with the sign of your answer.) 23 m/s

During a very quick stop, a car decelerates at 6.75 m/s. (a) What is the angular acceleration (in rad/s2) of its 0.250 m radius tires, assuming they do not slip on the pavement? (Indicate the direction with the sign of your answer. Assume the tires initially rotated in the positive direction.) -27 v rad/s? (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity is 92.0 rad/s? revolutions (c) How long (in s) does the car take to stop completely? 3.407 (d) What distance (in m) does the car travel in this time? 78.361 X m (e) What was the car's initial velocity (in m/s)? (Indicate the direction with the sign of your answer.) 23 m/s

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 93A

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