Asked by alex
A puck of mass 5.0 kg moving at 16.5 m/s approaches an identical puck that is stationary on frictionless ice. After the collision, the first puck leaves with a speed v1 at 30º to the orginal line of motion. The second puck leaves with speed v2 at 60º. The speed v1 after the collision is _____ m/s.
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Answered by
Anonymous
Claude Giroux
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