On a frictionless table, a glob of clay of mass m=0.420 ?kg strikes a bar of mass M=0.640 ?kg perpendicularly at a point b=0.300 ?m from the center of the bar and sticks to it.

8a

If the bar is L=1.50 ?m long and the clay is moving at v=7.90 ?m/s before striking the bar, what is the final speed of the center of mass?

8b

At what angular speed does the bar/clay system rotate about its center of mass after the impact (in rad/s)?

b m M L