Glider problem?

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A glider of mass 0.152 kg is moving to the right on a frictionless, horizontal air track with a speed of 0.820 m/s. It has a head-on collision with a glider 0.298 kg that is moving to ...show more
Update : okay so i used this formula : v1f=((m1-m2)/(m1+m2))v1i ...show more
Best Answer
Again use the conservation of momentum and conservation of energy (because it is an elastic collision) and solve the two simultaneous equations that are created for the final velocity of glider 1 and glider 2.
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