On a frictionless horizontal air table, puck A (with mass 0.246 kg) is moving toward puck B (with mass 0.369 kg), which is initially at rest. After the collision, puck A has velocity 0.115 m/s to the loft, and puck B has velocity 0.650 m/s to the right. Part A What was the speed A of puck A before the collision? View Available Hint(s) Submit m/s Part B Calculate AK, the change in the total kinetic energy of the system that occurs during the collision. View Available Hint(s) Ash