Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 7 - Think and Explain - Page 129-130: 83

Answer

Input force multiplied by input distance equals output force multiplied by output distance. Her small force acts over a large distance, and the lever turns it into a large force over a small distance.

Work Step by Step

This is discussed on page 120.
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