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Homework Help: Spring length hanging down and horizontal

  1. Oct 13, 2011 #1
    1. The problem statement, all variables and given/known data

    is a spring longer hanging down or horizontal

    2. Relevant equations

    3. The attempt at a solution
    i think that the spring is longer hanging down because then its own mass contributes to the force of gravity, making it stretch more.
  2. jcsd
  3. Oct 13, 2011 #2
    That is correct. When vertical, its own weight contributes to its stretch.
  4. Oct 13, 2011 #3
  5. Oct 13, 2011 #4
    Would it be the springs entire mass? Or just the part under the equilibrium?
  6. Oct 14, 2011 #5
    if it was only the part under the equilibrium then half of the spring would be stretched and half would be uncompressed right?
    Each coil on the spring weights any coils above it. so you should have the most stretching at the very top, I think.
  7. Oct 14, 2011 #6
    But doesn't the equilibrium point move as the spring stretches???
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