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physics 101 16 An ice hockey puck moves in a straight line with a velocity of 5m/s. It strikes a second identical puck, which is

physics 101

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16 An ice hockey puck moves in a straight line with a velocity of 5m/s. It strikes a second identical puck, which is initially at rest, head-on. The second puck moves off in the same straight line as the first puck with a velocity of 4m/s. Calculate the velocity of the first puck after the collision. Show your working. velocity of first puck after collision =

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