Physics: Principles with Applications (7th Edition)

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

Chapter 9 - Static Equilibrium; Elasticity and Fracture - Questions: 12

Answer

To stand, your center of mass must be closer to your feet.

Work Step by Step

When you rise from a chair, initially your CM s not over your point of contact with the floor (i.e., your feet), which acts as a pivot point. Your weight exerts a torque about that point that tends to rotate you back into a sitting position. Therefore, to stand up, you instinctively first lean forward to move your CM over your feet.
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.