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Centripetal Motion

  1. Feb 10, 2008 #1
    1. The problem statement, all variables and given/known data
    When solving problems involving centripetal motion, say rotating a string/spring with an object attached to it, without taking into account of the mass of the string/spring. What effect would it have if we DID take it into account?


    2. Relevant equations



    3. The attempt at a solution
    If we were to twirl the mass in a horizontal circle, I would think that the weight of the string/spring would lower the height of the circular path, like a conical pendulum - affecting the radius of its path. Am I going in the right direction .. ?
     
  2. jcsd
  3. Feb 10, 2008 #2

    Shooting Star

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    That's right. Think of a very heavy rod replacing the string. For the same energy, it would revolve at a lower height.
     
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