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## Homework Statement

A glider of mass 0.143 kg is moving to the right on a frictionless, horizontal air track with a speed of 0.750 m/s. It has a head-on collision with a glider 0.303kg that is moving to the left with a speed of 2.13 m/s. Suppose the collision is elastic.

## Homework Equations

MaVa1+MbVb1=MaVa2+MbVb2

1/2MaVa1^2+1/2MbVb1^2=1/2MaVa2^2+1/2MbVb2^2

## The Attempt at a Solution

Where do I start with this? I have all of the left side of the equations, but nothing on the right