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papereater33

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## Homework Statement

A HOCKEYPLAYER SKATES AT 7.85 M/S AND HAS A MASS OF 120 KG WHEN HE COLLIDES WITH ANOTHER STAIONARY HOCKEY PLAYER. THE SECOND HOCKEY PLAYER IS NOW MOVING AT 5.67 M/S. FIND THE MASS OF THE SECOND HOCKEY PLAYER AND THE SPEED OF THE FIRST. ASSUME THIS COLLISION IS ELASTIC.

## Homework Equations

[Rho]playerone + [Rho]player2 == [Rho]playeroneafter + [Rho]player2after

^^^ COnservation of Momentum

And then Another Equation Which Escapes me.

## The Attempt at a Solution

Find: Pplayer1, Pplayer2,

How do I find the Mass and Speed?

I have been doing Collision Problems for some time now, but must have gotten hit too hard in hockey, because I am lost!

Many Thanks from Frigid CT