Physics 312 Lecture: "Angular Momentum"
Mar 19, 1998
- The vector or cross product is another way to combine two
vectors; it creates a vector perpendicular to both
it the originals.
- The angular momentum of a body depends on the point chosen
as the origin.
- The angular momentum of a body around a point is the cross
product of the radius from the point to the body
and the momentum of the body.
- Angular momentum is the rotational analog of linear momentum
- Just as the time derivative of linear momentum is force,
the time derivative of angular momentum is torque.
- The angular momentum around a point of a body which moves directly
towards that point is zero.
This lecture discusses material in Chapter 11 of Serway.
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