Department of Physics and Astronomy
Michigan State University
PHY231 Fall 1997

Lecture 17: October 06

Reminder: 2nd midterm on Friday, October 10

Reading before class: C/J 9.1 - 9.3

Topics and Concepts

• Torque
• Lever arm
• Right-hand-rule
• Equilibrium of a rigid body
• Center of gravity

Equations

Examples

• Different lever arms, different torques (C/J example 1, page 245)
• Achilles Tendon (C/J example 2, page 246)
• Body building (C/J example 6, page 250)
• Center of gravity of an arm (C/J example 7, page 253)

Reading for next class: C/J 9.4-9.6

PHY 231

This document http://www.pa.msu.edu/courses/1997fall/PHY231/lect17.html was last updated on 20 August 1997 by Thomas Glasmacher