1. The problem statement, all variables and given/known data On a frictionless table, a 0.58 kg glob of clay strikes a uniform 1.62 kg bar perpendicularly at a point 0.18 m from the center of the bar and sticks to it. If the bar is 0.70 m long and the clay is moving at 6.20 m/s before striking the bar, what is the final speed of the center of mass? A=1.63m/s At what angular speed does the bar/clay system rotate about its center of mass after the impact? A=? [PLAIN]http://img217.imageshack.us/img217/616/prob21a.gif [Broken] 2. Relevant equations Not sure 3. The attempt at a solution I solved for the final speed of the center of mass using conservation of momentum, but i am lost on the 2nd part. I know the center of mass changes when the clay is attached to the bar, but im not sure how i would use that to solve the question.