A cylinder has inner and outer radii of #8 cm# and #15 cm#, respectively, and a mass of #3 kg#. If the cylinder's frequency of counterclockwise rotation about its center changes from #15 Hz# to #12 Hz#, by how much does its angular momentum change?
1 Answer
Jul 20, 2017
The angular momentum changes by
Explanation:
The angular momentum is
where
For the cylinder,
So,
The change in angular velocity is
The change in angular momentum is