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Spring Question

  1. Jul 28, 2010 #1
    I was just wondering, is the equilibrium of a spring when there is no force applied or when there is a mass on it and it is in equilibrium?

    Thankyou.
     
  2. jcsd
  3. Jul 28, 2010 #2
    The force comes from the compression of the spring, so equilibrium point is when the spring is in it's natural uncompressed state (x=0 is defined as this point).
     
  4. Jul 28, 2010 #3
    Sometimes you can define a new equilibrium point for a spring that's got a mass hanging from it. This helps simplify vertical oscillation problems because the spring still oscillates at the same frequency it would if it were horizontally oriented, but it oscillates about its "new" equilibrium rather than its uncompressed equilibrium.
     
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