Milladallen4viz Milladallen4viz Science Answered 1. Which has greater momentum, a 2.0 kg hockey puck moving cast at 2.5 m/s or a 13 kg hockey puck moving south at 3.0 m/s?? 2. Calculate the momentum of a 700 g ball that is rolling down a ramp at 4.6 m/s. 3. What is the velocity of a 65 kg car if its momentum is 780 kg-m/s?