- #1
jsmith613
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Momentum conservation?
Consider a ball falling towards the earth. I understand here how momentum is conserved here (ball momentum increases in one direction and Earth momentum increases in the other).
BUT when the ball collides with the floor and it changes direction its momentum change is 2mv. How is momentum consereved in the whole system?
Consider a ball falling towards the earth. I understand here how momentum is conserved here (ball momentum increases in one direction and Earth momentum increases in the other).
BUT when the ball collides with the floor and it changes direction its momentum change is 2mv. How is momentum consereved in the whole system?