An air hockey puck is moving with a velocity of 2 in/sec towards a second puck that is at rest. After the two pucks collide, the first puck reverses direction and moves at 0.7 in/sec. If the pucks have the same mass, what is the velocity of the second puck after the collision in m/s? Assume the air hockey table has no friction and that all of the motion is in one dimension

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