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He elastic potential energy

  1. Mar 15, 2006 #1
    1.60 kg object is hanging from the end of a vertical spring. The spring constant is 48.0 N/m. The object is pulled 0.200 m downward and released from rest. Complete the table below by calculating the translational kinetic energy, the gravitational potential energy, the elastic potential energy, and the total mechanical energy E for each of the vertical positions indicated. The vertical positions h indicate distances above the point of release, where h = 0.

    h (m)

    ok..i got no problem with the translational kinetic energy, the gravitational potential energy and the total mechanical energy E......but im confused about the elastic potential energy..........i know its PE= 1/2KX^2
    but how can i find X
  2. jcsd
  3. Mar 15, 2006 #2


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    x would be the distance from the equiblrium position.
  4. Mar 16, 2006 #3
    X = the distance the mass stretches the spring from the springs original position (no mass pulling on it)
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