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## Homework Statement

There are 2 identical boxes. One box is stationary. Another box is moving towards the other box at 6 m/s. After the collision what is the speed of the originally stationary box? Give a numerical answer in m/s.

## Homework Equations

p=m1v1

W=K2-K1

## The Attempt at a Solution

so I would use conservation of momentum

p1=p2

m*6=m*v1+mv2

and after this there's no way to solve for v2? I don't know what speed the orignally moving box will travel ?

Thanks