Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 11 - Exercises and Problems - Page 201: 41



Work Step by Step

We know that the moment of inertia must decrease by 70 percent, so we multiply the current moment of inertia by .7. In addition, we know that the wheel must go down in diameter from .38 to .35, so we multiply by $\frac{.35}{.38}$. Thus, we find: $I_{new}=.32 \times .7 \times \frac{.35}{.38}=\fbox{.2063}$
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.