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Opposite Direction/Opposing Forces

  1. Aug 8, 2010 #1
    Is it possible for two objects to travel in opposite directions with out any work if they have opposing forces? I attached a diagram to show what I am trying to say. The boxes in the diagram are moving from position 1 to position 2.

    Attached Files:

  2. jcsd
  3. Aug 9, 2010 #2
    Diagram doesn't help much.
    Anytime there is force on a body that is moving, there is work.
  4. Aug 9, 2010 #3
    This might be a better way to ask.

    Is it possible for the two objects to use each others opposing forces to travel with out any work(other than friction)?
  5. Aug 9, 2010 #4
    I still have basically no idea what you're talking about, except that it seems to be a free-energy something or other. I'm pretty sure the answer is no.
  6. Aug 9, 2010 #5
    Work is a scalar, not a vector. Since the forces are opposing the direction of motion, they are both doing negative work. Both closed systems would be losing energy.

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