# Rate of Change of Angular Momentum

**Rate of Change of Angular Momentum: **In this lecture, Professor Lewin covers the rate of change in angular momentum through the use of rolling motion and gyroscopes. When you apply a torque to a fast spinning wheel, it moves the spin angular momentum in the direction of the torque (torque is a vector). This is called precession. A suitcase is brought in that requires special handling. There is a fast rotating flywheel inside! A student volunteers to carry the suitcase around. The suitcase behaves in a weird manner as the student turns around.

**Related Topics**

- Angular Momentum
- Conservation of Angular Momentum
- Conservation of Angular Momentum
- Change of Momentum, Impulse, Rockets
- Ladder rate-of-change problem
- Introduction to rate-of-change problems
- Chemical Kinetics: The Rate Equation, Order of Reaction, Rate Laws
- Introduction to Angular Velocity
- Introduction to Angular Velocity
- Diffraction, Grating, Pin Holes, and Angular Resolution

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