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Work done by 2 objects move together

  1. Oct 2, 2009 #1
    1. The problem statement, all variables and given/known data
    Object 1 pushes on object 2 as the objects move together, like a bulldozer pushing a stone. Assume object 1 does 15.0 J of work on object 2. Does object 2 do work on object 1?

    3. The attempt at a solution
    My answer is yes, the object 2 does work on object 1 as a resistive force. However, how do I know the exactly work that done by the object 2?

    2 objects are moving together without mention under a constant velocity or acceleration. I've no clue on this.
     
  2. jcsd
  3. Oct 2, 2009 #2

    rock.freak667

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    Work done on 2 by 1 = - work done by 1 on 2.
     
  4. Oct 2, 2009 #3
    in all kind of situation?
     
  5. Oct 2, 2009 #4

    rock.freak667

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    I believe it is so in most cases.
     
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