Angular Momentum
Equation
Conservation of Angular Momentum If the net outside torque on a system is zero then the angular momentum of the system is conserved.
Example http://hyperphysics.phy-astr.gsu.edu/hbase/rstoo.html#sm
https://www.youtube.com/watch?v=iaauRiRX4do
Another Example https://www.youtube.com/watch?v=fwAjPOR28J0
Yet Another Example https://www.youtube.com/watch?v=l2VuosSk9zU
Yet Another Example, The Sequel https://www.youtube.com/watch?v=07H5pIUXLhU
Problem A turntable (I = 3.6 kgm2) is rotating at 6 rad/s when a 1 kg piece of clay is dropped onto it at a distance of 1 m from the center. What is the angular speed of the turntable after the clay is dropped on it?
Torque and Impulse Any change in angular momentum is caused by a torque. The impulse is the change in angular momentum and can be found by using:
Angular and Linear Momentum for Point Masses Linear momentum and angular momentum for point masses (or an object rotating about a point external to the object) are related by a factor of r, just like other linear and angular quantities.
Torque and Work
Work