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Collisions in Glowscript

Here is the Glowscript model I created in class – http://www.glowscript.org/#/user/rhettallain/folder/phys221/program/collisions

You should play with this.  Consider the following questions.

  • What happens if you change the mass?
  • Is kinetic energy conserved?
  • What if both masses start off moving?
  • Can you change the force in any way?  What if you make it stronger or weaker?
  • What if you make the force proportional to one over the separation distance instead of one over the distance squared?
  • When you give the ball 1 a starting position not on the x-axis, is momentum conserved?  Is momentum conserved in the y-direction?
  • Can you change the force in a way such that the momentum is conserved but not the kinetic energy (I admit this is tough – you will have to be creative to get this to work).
  • Can you change the force in such a way that momentum is not conserved?
  • What if there is an external gravitational force?  Would momentum be conserved?  What about a plot of the motion of the center of mass?
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