This program teaches the concept of rotational equilibrium. Then he works out problems, one step at a time, dealing with multiple torques that cancel one another out and cause an object to be fixed in space.

Originally released by TMW Media Group, 2007. Streaming video file encoded with permission for digital streaming by Infobase on May 08, 2015.

Rotational Equilibrium: Overview (5:18); --Rotational Equilibrium: Word Problem (7:22); .