D dk2421 Jan 2009 4 0 Jan 19, 2009 #1 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

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

skeeter Aug 2008 113 35 Jan 21, 2009 #2 \(\displaystyle L = I\omega = \frac{1}{2}mr^2 \cdot \omega\) convert \(\displaystyle \omega\) into rad/sec ... plug and chug.

\(\displaystyle L = I\omega = \frac{1}{2}mr^2 \cdot \omega\) convert \(\displaystyle \omega\) into rad/sec ... plug and chug.