A cylinder has inner and outer radii of 12 cm12cm and 18 cm18cm, respectively, and a mass of 6 kg6kg. If the cylinder's frequency of rotation about its center changes from 4 Hz4Hz to 9 Hz9Hz, by how much does its angular momentum change?
1 Answer
Feb 8, 2017
The answer is
Explanation:
The angular momentum is
where
The change in angular momentum is
For a cylinder,
So,