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Zoing! Spring Mass Systems!

  1. Jan 27, 2008 #1
    Just a few Spring-Mass systems with Hooke's Law. I have never seen these before, so I'd like to know, if possible, whether I'm doing these right (especially 9.3e, which just looks wrong).

    1. The problem statement, all variables and given/known data
    9.3, 9.4, and 9.5
    *Note* For 9.5, apply the questions of 9.4

    [​IMG]

    2. Relevant equations
    F = ma = -ku, where u represents displacement from equilibrium and k is the spring constant.


    3. The attempt at a solution
    [​IMG]
    [​IMG]
    [​IMG]
     
    Last edited: Jan 27, 2008
  2. jcsd
  3. Jan 27, 2008 #2
  4. Jan 27, 2008 #3
    I really hate to force the issue, but I really to know whether my logic is right (hence the scanning and such), seeing as I can't move on with my work without a proper understanding of spring systems. =/

    Sorry.
     
  5. Jan 27, 2008 #4
    My apologies, I forgot to mention that L1 and L2 are, respectively, the unstreched lengths of the springs with spring constants K1 and K2.
     
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