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Homework Help: Pendulum with a spring attached

  1. Dec 31, 2015 #1
    1. The problem statement, all variables and given/known data
    Mass = 0.2 kg
    Length of pendulum = 0.2 m
    Force constant 3 n/m
    2. Relevant equations

    T = 2pi rad(m/k)
    Sum of Torque
    3. The attempt at a solution

    I am really confused on where to start. I know you simply cannot plug it into the first equation listed above since all the mass isn't concentrated at the tip of the spring. I tried to find the distance the spring was compressed by attempting pythag, but that didn't work since I didn't have enough information. I attached the full question.
     

    Attached Files:

  2. jcsd
  3. Dec 31, 2015 #2

    TSny

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