1. The problem statement, all variables and given/known data A dumbbell consists of two small balls attached to the ends of a 1.0m rod of negligible mass. Ball1 has a mass of 1.0kg and ball2 has a mass of 3.0kg. The dumbbell rotates about a fixed vertical axis midway between the balls, with an angular speed of 1/pi rev/s. What is the total angular momentum of the dumbbell? 2. Relevant equations 3. The attempt at a solution I=mr^2 L=wI w=2 (since the angular speed is 1/pi rev/s?) r^2=0.25m m=4kg L=2 kg*m²/s would that be right?