One hockey puck of mass 02 kg strikes an identical
One hockey puck of mass 0.2 kg strikes an identical stationary puck on a frictionless ice rink. If the first puck had a velcoity of 3.8 m/s before the collision and velocity 0.8 m/s after in the same direction, what fraction of the energy was lost?
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One hockey puck of mass 0.2 kg strikes an identical stationary puck on a frictionless ice rink. what fraction of the energy was lost
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