Angular momentum problem

Jan 2009
4
0
A disk has a mass of 50 g and a radius of 3 cm. When it spins at 400 rev/s, what is its angular momentum?
I= (1/2)mr^2

Show work please. Thanks
 
Aug 2008
113
35
\(\displaystyle L = I\omega = \frac{1}{2}mr^2 \cdot \omega\)

convert \(\displaystyle \omega\) into rad/sec ... plug and chug.