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Tension force

  1. Dec 21, 2014 #1
    what is the difference between the tension force of the rope and that of spring ??
     
  2. jcsd
  3. Dec 21, 2014 #2

    Doc Al

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    Staff: Mentor

    Can you give some context for your question?
     
  4. Dec 21, 2014 #3
    why one of them is considered conservative force and the other isn't ?
     
  5. Dec 21, 2014 #4

    Doc Al

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    Staff: Mentor

    Springs are generally modeled as being elastic and following Hooke's law. So a potential energy function can be defined: ##PE = \frac{1}{2}k x^2##.

    Ropes, on the other hand, are generally modeled as being inelastic and inextensible. (Obviously a simplification, as real ropes often do stretch appreciably under load.)
     
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