Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 6 - Work and Energy - Search and Learn - Page 169: 4

Answer

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Work Step by Step

First example: Balance a book on your head and walk forward, starting at rest. The force of friction between the book and your head pushes the book forward, doing positive work and increasing its kinetic energy. Second example: Drive your car forward. The force of static friction between the tires and the street pushes the car forward, doing positive work and increasing its kinetic energy.
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