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Homework Help: Physics help fast thanks

  1. Nov 18, 2004 #1
    physics help fast thanks!!

    A force acting on a particle is conservative if:
    1 the work done by it equals the change in the kinetic energy of the particle
    2 it obeys Newton's 3rd
    3 it obeys Newton's 2nd
    4 its work depends on the end points of the motion, not the path between
    5 it is not a friction force

    thanks
     
  2. jcsd
  3. Nov 18, 2004 #2
    i think it's 4
     
  4. Nov 18, 2004 #3

    James R

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    1,2 and 3 are true for all forces, conservative or not.
    Friction is a non-conservative force, but not the only one.
    The correct answer is 4.
     
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