On a frictionless horizontal air table, puck A (with mass 0.245kg ) is moving toward puck B (with mass 0.373 kg ), which isinitially at rest. After the collision, puck A has velocity 0.118m/s to the left, and puck B has velocity 0.647 m/s to theright.
a. What was the speed vAi of puck A before the collision?
b. Calculate ΔK, the change in the total kinetic energy of thesystem that occurs during the collision.
