A cylinder has inner and outer radii of 2 cm2cm and 12 cm12cm, respectively, and a mass of 2 kg2kg. If the cylinder's frequency of counterclockwise rotation about its center changes from 24 Hz24Hz to 18 Hz18Hz, by how much does its angular momentum change?
1 Answer
Jan 29, 2017
The answer is
Explanation:
The angular momentum is
where
The change in angular momentum is
For a cylinder,
So,