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A car has the same kinetic energy when it is traveling

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 4DQ Chapter 8

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 4DQ

A car has the same kinetic energy when it is traveling south at 30 m/s as when it is traveling northwest at 30 m/s. Is the momentum of the car the same in both cases? Explain.

Step-by-Step Solution:

Solution 4DQ Step 1: In the 1st case, the car was moving with a speed of 30 m/s towards south. And in the 2nd case the same car is moving towards north-west with the same speed of 30 m/s. The momentum by the definition of newtonian mechanics is mass times velocity. So, the magnitude of momentum in both the cases is same, as the same mass moving with the same speed.

Step 2 of 3

Chapter 8, Problem 4DQ is Solved
Step 3 of 3

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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A car has the same kinetic energy when it is traveling