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Basic physics

  1. Nov 8, 2008 #1
    1. The problem statement, all variables and given/known data
    How do I find the elongation of a spring when just given K=119 N/m, mass of the wooden block it is attached to=4.17kg and the densty of the wooden block = 695 kg/m^3.

    2. Relevant equations
    I do not know what equation to use.

    3. The attempt at a solution
    I have not been able to make an attempt because I do not know what equation to start off with.
  2. jcsd
  3. Nov 8, 2008 #2


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    Gold Member

    You had the correct equation the first time you posted the question.

    I'm curious why you multiplied 4.17 by 695?
  4. Nov 8, 2008 #3
    Well im trying to find the elongation of the spring. So the correct equation is F=-kx???
    Does that mean that I change it to solve for x?? x= F/-k
    I do not kno how to find the force for the equation if I only have the mass and density of the wooden block the string is attached to. I am completely lost!
  5. Nov 8, 2008 #4


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    Gold Member

    The density of the wooden block has nothing to do with this problem.
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