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Collisions in 2D

  1. Oct 26, 2004 #1
    I'm designing a program that simulates collisions in 2 dimensions, among other things. The collisions are between 2 circles, the collisions themselves are perfectly elastic. The mass of the two circles are known, and their X and Y velocity components are known. They also have specific radii. I can easily detect collisions amongst 2 circles, but I cannot solve for the final Vx or Vy vectors of the two spheres.

    Any help would be greatly appreciated.
  2. jcsd
  3. Oct 27, 2004 #2


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    As long as you are not including friction and spin all you have to do is exchange the component of momentum along a line joining their centers when they make contact.
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