# A solid disk, spinning counter-clockwise, has a mass of #2 kg# and a radius of #5/2 m#. If a point on the edge of the disk is moving at #15/4 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?

##### 1 Answer

Angular momentum

Angular velocity

#### Explanation:

For any object which is rotating about an axis, each point located on the object has the same angular velocity

#omega=v/r#

Inserting given values we get

The angular momentum

#L = Ixxω#

where#I# is the moment of inertia of a solid disc and is given as#1/2Mr^2# .#M# being mass of disc.

If we substitute the value of

Inserting given values