Question about Springs for Physics

[Aznguy1872]

Hello all, so I have a question regarding with springs and physics. The question is:

You have two people pulling on spring that is attached to an immovable wall. Then they detatch the spring and pull on opposite ends of the spring. They pull just as hard in each case. In which situation, if either, does the spring stretch more?

I also need a way to justify it. I am leaning towards that they each stretch the same. What do you guys think?

 

[Aznguy1872]

anybody?

 

[FleshLight]

F = -kx

Depends on the displacement.

 

[sao123]

depends on the thickness of the wall, and the state of the spring (compressed/decompressed/natural) during the period of the thickness of the wall.

 

[invidia]

I don't get the question. They detach the spring and one of the two goes to the other side and pulls on it with the same force as if they were before?

 

[Aznguy1872]

hrm... the spring is in its plain state, then grabbed by 2 people and pulled.

 

[drinkmorejava]

It's more when it's attached to the wall. When they're people on both ends, one of them is essentially the wall again.

 

[Aznguy1872]

so scenerio 1: Spring is attached to wall, and they both pull on the other side.

Scenerio 2: One person pulls from one side while the other person pulls from the other side.

 

[invidia]

It depends how much force is being applied.

 

[Ika]

They will stretch the same.

Let's put it this way:

{people} 2F~~~~~|(-2F because it stays in place) {wall}

{person} -F~~~~~F {person}

In both cases, the forces on each side cancel each other out.

 

[Aznguy1872]

hrm.. ah, kk thanks alot guys!