Please answer both parts

On a frictionless, horizontal air table, puck A (with What was the speed of puck A before the collision? mass 0.200 kg) is moving toward puck B (with Express your answer in meters per second. mass 0.350 kg), which is initially at rest. After the collision, puck A has a velocity of 0.110 m/s to the left, and puck B has a velocity of 0.650 m /s to the AEQ ? right. v = m/s Submit Request Answer Part B Calculate the change in the total kinetic energy of the system that occurs during the collision. Express your answer in joules. AED