1. The problem statement, all variables and given/known data A ball with radius, R, and moment of inertia, I = 2/5 mR2 is rolling on a horizontal plane with angular velocity ω0. At point A the ball rolls onto an incline with the angle θ wrt the horizontal plane. No air resistance and ω0R = V, where V is the velocity of CM. What is the ball's angular velocity just after it has started rolling up the incline? 2. Relevant equations 3. The attempt at a solution I'm thinking it has something to do with the ball's angular momentum. However I'm not sure if I should be looking at the momentum with respect to a specific point or something else.