during an elastic collision between two dry ice pucks moving on a frictionless surface energy and momentum are conserved

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During an elastic collision between two dry ice pucks moving on a frictionless surface energy and momentum are conserved. By measuring the velocity of the incoming puck top left before and after the collision and the velocity of the stationary puck after the collision both energy and momentum can be calculated. The pucks are of equal mass and move with negligible friction on a cushion of carbon dioxide. Note the ninety degree angle between the two directions after the collision

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Keywords: 1/2mv2, angle, collision, conservation, conserve, conserved, degrees, dry, elastic, energy, experiment, friction, frictionless, ice, laboratory, momentum, mv, physics, puck, school, strobe, velocity