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Hooke's Law - System of Springs

  1. Aug 13, 2009 #1
    1. The problem statement, all variables and given/known data

    http://img529.imageshack.us/img529/3814/hookes.jpg [Broken]

    Assuming spring constant for system A (left) is k
    Then system B (middle) is k/2 and system C (right) is 2k

    http://img15.imageshack.us/img15/7238/87792676.jpg [Broken]

    How about this system? Thanks for helping.

    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
    1. The problem statement, all variables and given/known data



    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
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Aug 13, 2009 #2

    rock.freak667

    User Avatar
    Homework Helper

    replace the two springs in parallel with the spring with the equivalent spring constant. Now you have two springs in series.
     
  4. Aug 13, 2009 #3


    How about it? Do you have a question? Showing us pretty graphs doesn't tell anyone what you're stuck on. Also, those bold sentences are there for a reason: use them. State the question, give the relevant equations, and show your attempt at a solution, and then maybe I can give you a hint (or someone else can -- I'm a beginning physics student as well, so I make a lot of mistakes!).
     
  5. Aug 13, 2009 #4

    Doc Al

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    Staff: Mentor

    Assuming you understand these statements, which describe the effect of adding springs in series or parallel, you can apply them directly to the new system. Hint: Start by replacing the bottom two springs by with an equivalent single spring.

    Looks like rock.freak667 beat me too it! :smile:
     
  6. Aug 13, 2009 #5
    Thanks. Solved it. =D
     
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