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Homework Help: Conservation of Momentum

  1. Jan 24, 2010 #1
    Using a 2-D collision experiment:
    A marble is launched off a track and travels 28cm before it hits the floor.
    A marble is launched off a track and hits another marble at the end of that track, where both hit the floor. One lands 13cm away at 44° from the perpendicular and the other lands 22cm away at 41° from the perpendicular.

    I did the math and got the the correct answer, but then there is another question that asks "Explain why the displacement represents acceleration".
    I really have no idea how these to have anything in common. I know that the collision causes energy transfer causing the balls to go in a slightly different direction. Does anyone have any hints?

  2. jcsd
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