1. During a very quick stop, a car decelerates at 12 m s? (a) What is the angular acceleration of its 0.3 m radius tires, assuming they do not slip on the pavement? Hint: Don't forget the sign. rad a = -40 s2 (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity rad is 103 S 21.1 revolutions (c) How long does the car take to stop completely? t = 2.6 (d) What distance does the car travel in this time? Hint: How is the arc length traveled by a point on the tire's rim related to the horizontal distance traveled by the tire? x = 54.15 m

1. During a very quick stop, a car decelerates at 12 m s? (a) What is the angular acceleration of its 0.3 m radius tires, assuming they do not slip on the pavement? Hint: Don't forget the sign. rad a = -40 s2 (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity rad is 103 S 21.1 revolutions (c) How long does the car take to stop completely? t = 2.6 (d) What distance does the car travel in this time? Hint: How is the arc length traveled by a point on the tire's rim related to the horizontal distance traveled by the tire? x = 54.15 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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