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Mass m 1=m 2. Mass m 1 is moving at 5m/s. A second mass m 2...

Mass m 1=m 2. Mass m 1 is moving at 5m/s. A second mass m 2 is stationary. m 1 hits m 2. The collision was elastic and there is no friction. Was is the velocity of m 1 after the collision?

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