On a frictionless horizontal air table, puck A (with mass 0.255kg ) is moving toward puck B (with mass 0.375 kg ), which isinitially at rest. After the collision, puck A has velocity 0.117m/s to the left, and puck B has velocity 0.650 m/s to theright.
What was the speed vAi of puck A before thecollision?
Calculate ΔK, the change in the total kinetic energy ofthe system that occurs during the collision.
