Physics Help Forum What is the energy of a rope?
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 Apr 16th 2018, 12:08 PM #1 Junior Member   Join Date: Apr 2018 Posts: 2 What is the energy of a rope? Is a ropes force is Conservative Force? And there is a formual for a rope force? (I mean like a spring has one)
Apr 16th 2018, 12:24 PM   #2
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 Originally Posted by Shalevlevi Is a ropes force is Conservative Force? And there is a formual for a rope force? (I mean like a spring has one)
Well you would have to say what you were doing with that rope.

Apr 16th 2018, 12:36 PM   #3
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 Originally Posted by studiot Well you would have to say what you were doing with that rope.
Hanging him to a wall from one side and hangin a body on it other side, i actually just wanted to know if "tension" is a conservative force.
" A conservative force is a force with the property that the total work done in moving a particle between two points is independent of the taken path " -from wiki

Apr 16th 2018, 12:42 PM   #4
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 Originally Posted by Shalevlevi Hanging him to a wall from one side and hangin a body on it other side, i actually just wanted to know if "tension" is a conservative force. " A conservative force is a force with the property that the total work done in moving a particle between two points is independent of the taken path " -from wiki
So how many paths do you have to choose from for the tension in a rope?

 Apr 16th 2018, 05:17 PM #5 Senior Member   Join Date: Aug 2010 Posts: 404 First, "tension" is force, not energy. There is no "energy" inherent in a rope. Nor does it make sense to ask if the "force" is "conservative" or not. If you have an object hanging by a rope, lift it up then back down, the energy of that object is conserved. But that is because gravity is a conservative force. If you were to drag an object around in a circle, pulling it by a rope across a rough surface, energy would NOT be conserved- that that is because the friction force of the surface is not conservative. It has nothing to do with the rope. studiot likes this.
 Apr 16th 2018, 06:03 PM #6 Senior Member   Join Date: Jun 2010 Location: NC Posts: 417 Rope Physical analysis of reality is approximated. Actual systems have ropes (sailing ships, hangman's appratus etc.) For the "quick" physics answer, all actual "ropes" are simplified by a "model." Typically, upon encounter of a "rope" in actuality... that rope is modeled as something having a single nature, "resists lengenthing." Constant tension end to end. The idea in converse is: "one cannot push a rope." Back to the real rope. Energy of a rope might be potential or kinetic, by mass, position and speed. Extrinsic Energy. Real ropes, hemp or wound wire have intrinsic energy as, U (and H). Its properties (state variables) are temperature and elongation. This detail of representation of rope behavior involves modulus of streatch and so. And breaking strength. TEXT BOX is Full... Good Luck JP

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