Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 9 - Work and Kinetic Energy - Conceptual Questions: 11

Answer

(a) The restoring force is $3F$ when the spring is stretched to a length of 13 cm. (b) The restoring force is $2F$ when the spring is compressed to a length of 8 cm.

Work Step by Step

The magnitude of a spring's restoring force is $F = kx$, where $x$ is the length that the spring is stretched or compressed. The problem statement tells us that the restoring force is $F$ when $x = 1~cm$. (a) The restoring force is $3F$ when the spring is stretched 3 cm. That is, the restoring force is $3F$ when the spring is stretched to a length of 13 cm. (b) The restoring force is $2F$ when the spring is compressed 2 cm. That is, the restoring force is $2F$ when the spring is compressed to a length of 8 cm.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.