Hot answers tagged collision
Let's say that the ball strikes the floor with the linear momentum $-p_1$ (you see I take the direction of the momentum in consideration). Some part of the momentum is lost (some energy is lost to the floor) s.t. the ball rises again, but at the floor level it has a linear momentum $+p_2$. So, what the floor "gets" in this scenario? It GETS a linear momentum ...
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