Department of Physics and Astronomy
Michigan State University
PHY231 Fall 1997

Lecture 18: October 08

Reminder: 2nd midterm on Friday, October 10

Reading before class: C/J 9.4 - 9.6

Topics and Concepts

• Moment of Inertia
• Torque
• Newton's second law for rotational motion about a fixed axis
• Rotational work
• Rotational kinetic energy
• Angular momentum
• Conservation of angular momentum

Equations

Demonstrations

• Turntable with weights

Examples

• Moment of inertia depends on axis (C/J example 9, page 257)
• Rolling cylinders (C/J example 14, page 263)
• A spinning skater (C/J example 15, page 264)
• A satellite in an elliptical orbit (C/J example 16, page 265)

Handouts

• Moments of inertia for various rigid bodies

Reading for next class: C/J 10.1 - 10.3

PHY 231

This document http://www.pa.msu.edu/courses/1997fall/PHY231/lect18.html was last updated on 20 August 1997 by Thomas Glasmacher