Physics: Principles with Applications (7th Edition)

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

Chapter 8 - Rotational Motion - Questions: 6


This is a more favorable distribution of mass.

Work Step by Step

Running involves rotating one’s leg around the pivot/joint where it attaches to the torso. The smaller the moment of inertia of the leg, the easier it will be to change its rotational motion, and the faster the animal can run. Moving muscle and flesh closer to the joint (i.e, higher up the leg) reduces the leg’s moment of inertia, improving the animal’s running ability.
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.