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Homework Help: Central force field

  1. Aug 22, 2011 #1
    1. The problem statement, all variables and given/known data

    In the study of motion in a Central-Force Field in radial coordinates it is defined an effective potential energy which depends only on the radius r: in particular there is a term 'centrifugal' because the relative force (-grad) has a centrifugal versus. What is the meaning of this expression since it is derived from an inertial frame?
    thank you

    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Aug 22, 2011 #2

    PeterO

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    Some key words in your post are missing or incorrect, as it makes no sense as it stands???
     
  4. Aug 22, 2011 #3
    I'm sorry but I do not understand what are the errors. thanks for the help
     
  5. Aug 22, 2011 #4

    PeterO

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    What is a centrifugal versus?

    And I don't think you should be using the term centrifugal anyway! The is no such thing as a centrifugal force!!
     
  6. Aug 23, 2011 #5
    oh yes. My english is inadequate: excuse me, please.
    the 'effective potential expression' has a term: + L^2/(2mr^2).
    The force associate is directed outward from the center of the orbit, it looks like a 'centrifugal force'.
     
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