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Homework Help: Elastic Collisions On Earth

  1. Nov 2, 2007 #1
    1. The problem statement, all variables and given/known data
    What is an example of an elastic equation on earth?

    2. Relevant equations

    3. The attempt at a solution

    Is a ball bouncing on the ground a good example of an elastic collision? (If it is)
  2. jcsd
  3. Nov 2, 2007 #2
    A bouncing (rubber) ball would be a good example. Maybe even better would be a collision between two hard spheres, like billiard balls. Remember, in the real world, there is no such thing as a perfectly elastic collision between two large-scale objects (some of the kinetic energy is always transformed into other forms of energy like heat), but those two cases are nearly elastic, and that's as good as you're going to get.
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