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Spring Displacement by Adding Mass

  1. Nov 11, 2013 #1
    1. The problem statement, all variables and given/known data

    A spring hanging vertically has a spring constant of 56 N/m. When 2.1kg is hung from it, what is its vertical displacement?

    k=56
    m=2.1
    x=?
    g=9.81

    2. Relevant equations

    mg = -kx

    3. The attempt at a solution

    -x = (2.1*9.81)/56 = 0.367875m

    Did I setup the equation correctly?
     
  2. jcsd
  3. Nov 11, 2013 #2
    Yes, it's OK.
     
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