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Homework Help: What is the spring constant of the spring

  1. Feb 28, 2010 #1
    A spring elongates 0.05m when a 50N is applied to it

    a) What is the spring constant of the spring

    b) How long would the spring elongate if a 10kg mass is hung from the spring

    c) If the energy stored in the spring of parts a) and b) is given by

    E=0.5kx², how much energy is stored in the spring mass system of part b) g=10m/s²

    I got a) which is k = 1000 N/m

    b) i believe is 0.098m, k=m*g/k

    c) is 4.802

    I just want to verify if these are correct
     
  2. jcsd
  3. Feb 28, 2010 #2

    Delphi51

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    Re: Springs

    I agree with those answers.
     
  4. Feb 28, 2010 #3
    Re: Springs

    by the way what are the units for c?
     
  5. Feb 28, 2010 #4

    Delphi51

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    Re: Springs

    The unit of energy is the Joule.
    According to E = ½mv², a Joule (J) is equivalent to a kg⋅m²/s².
     
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