Collisions (elastic vs inelastic)?

If i take two objects...like two toy cars and roll one at the second one(at rest) In an elastic collision, is the loss momentum in the first one equal to the gain of momentum in the second one (at rest)? and imagining the same situation, say that the collision is inelastic.. Is the loss in momentum of car 1... show more If i take two objects...like two toy cars and roll one at the second one(at rest)
In an elastic collision, is the loss momentum in the first one equal to the gain of momentum in the second one (at rest)?

and imagining the same situation, say that the collision is inelastic..
Is the loss in momentum of car 1 equal to the gain in momentum in car 2?

I don't know if im over thinking this
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