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Homework Help: Euler-Lagrange fomalism

  1. Jun 15, 2012 #1
    (sorry for my english :P)


    I need help with this problem:

    .The question is:

    Write the equations of motion using the Euler-Lagrange formalism, assuming small motions around the vertical position.
    clue:determine the work of the forces as a function of degrees of freedom.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Jun 16, 2012 #2
    You need to make an attempt to solve the problem, but in general,
    1. write down your generalized coordinates i.e. identify and use your constraints.
    2. write the potential and kinetic energies of the system
    3. find L = T-V, where T =kinetic and V = potential and L = lagrangian
    4. Write the Euler equations
  4. Jun 16, 2012 #3
    Thanks for the help Dikmikkel,

    i'm gonna try to do .

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