Go Back   Physics Help Forum > High School and Pre-University Physics Help > Energy and Work

Energy and Work Energy and Work Physics Help Forum

Like Tree1Likes
  • 1 Post By HallsofIvy
Reply
 
LinkBack Thread Tools Display Modes
Old 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)
Shalevlevi is offline   Reply With Quote
Old Apr 16th 2018, 12:24 PM   #2
Senior Member
 
Join Date: Apr 2015
Location: Somerset, England
Posts: 861
Originally Posted by Shalevlevi View Post
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.
studiot is offline   Reply With Quote
Old Apr 16th 2018, 12:36 PM   #3
Junior Member
 
Join Date: Apr 2018
Posts: 2
Originally Posted by studiot View Post
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
Shalevlevi is offline   Reply With Quote
Old Apr 16th 2018, 12:42 PM   #4
Senior Member
 
Join Date: Apr 2015
Location: Somerset, England
Posts: 861
Originally Posted by Shalevlevi View Post
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?
studiot is offline   Reply With Quote
Old Apr 16th 2018, 05:17 PM   #5
Senior Member
 
Join Date: Aug 2010
Posts: 304
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.
HallsofIvy is offline   Reply With Quote
Old Apr 16th 2018, 06:03 PM   #6
Senior Member
 
Join Date: Jun 2010
Location: NC
Posts: 383
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
THERMO Spoken Here is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Energy and Work

Tags
energy, rope



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Don't understand this question about strain energy in a bungee jumping rope Jasnah General Physics 6 Mar 14th 2018 03:27 AM
Maximum elastic energy in rope peripatein Equilibrium and Elasticity 11 Nov 8th 2012 04:19 AM
Tension in a rope? Vishal Sahrawat Equilibrium and Elasticity 2 Jun 19th 2011 10:35 PM
Rope Pulling MyNewPony Kinematics and Dynamics 1 May 21st 2009 10:14 AM
Tension in rope climber123boy Kinematics and Dynamics 1 Feb 19th 2009 03:56 PM


Facebook Twitter Google+ RSS Feed