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In a hockey game, an 80.0 kg player skating at 10.0 m/s overtakes and bumps from...

In a hockey game, an 80.0 kg player skating at 10.0 m/s overtakes and bumps from behind a 100.0 kg player who is moving in the same direction at 8.00 m/s. As a result of being bumped from behind, the 100.0 kg player's speed increases to 9.78 m/s. What is the 80.0 kg player's velocity (speed and direction) after the bump?

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Answer #1

From conservation of momentum (80)(10)+(100)(8)-(80)(i)-(100)(9.78) 800 +800-80v, +978 v,-7775 m/s 7.8 m/s

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