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two wagons with elastic bumpers colide without any friction. Wagon A has the mass 0.1 kg while wagon B has 0.4 kg. After the collision wagon A has the speed 0.5 meters / second and wagon B lies still. Taken in consideration that the collision was elastic, what velocity does each wagon have before the collision?

I've came to the conclusion that Wk before = Wk after since it's elastic.

And that you can calculate the Wk after since you have all the information, yet this leaves me with two unknown constants, V1 and V2.

Please help me

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# Homework Help: Impact problem

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