A cylinder has inner and outer radii of 2 cm2cm and 5 cm5cm, respectively, and a mass of 12 kg12kg. If the cylinder's frequency of counterclockwise rotation about its center changes from 6 Hz6Hz to 4 Hz4Hz, by how much does its angular momentum change?
1 Answer
Jun 30, 2017
The change in angular momentum is
Explanation:
The angular momentum is
where
The mass,
For a cylinder,
So,
The change in angular momentum is
The change in angular velocity is
The change in angular momentum is