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Law of conservation of energy and springs.

  1. Jan 27, 2013 #1
    1. The problem statement, all variables and given/known data
    see the 2 image attachments.

    2. Relevant equations
    law of conservation of energy
    Fs = -kx
    Eg = mgh
    Ek = 1/2mv^2
    Es = 1/2kx^2

    3. The attempt at a solution
    i have no idea.
     

    Attached Files:

  2. jcsd
  3. Jan 27, 2013 #2

    rude man

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    How about energy conservation as the mass oscillates back & forth?
    .
     
  4. Jan 27, 2013 #3
    i found this answer online. can i trust this solution or is it wrong?
     

    Attached Files:

  5. Jan 28, 2013 #4

    rude man

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    I'm sorry, I can't read it.

    But it's a simple problem if you keep total (potential plus kinetic) energy constant as the mass oscillates.
     
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