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On a frictionless horizontal air table, puck Atwith Part A mass 0.251 kg ) is moving toward puck B (with mass 0.386 ky ), which is initially at rost, After the collision, puck A has velocity 0:117 m/a to the loft. What was the spood war of puck A before the collision? and puck B has velocity 0.646 m/s to the right > View Available Hint(s) IVO m/ Submit Part B Calculate AK, the change in the total kinetic energy of the system that occurs during the collision. > View Available Hint(s) AK Submit