- #1

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- Homework Statement
- Let's say we have a bungee cord where from 0<x<4.88 the spring constant (k) is 204 N/m, and when x>4.88 the spring constant is 111 N/m. What is the tension in the cord when the stretch is 16.7m?

- Relevant Equations
- ##F_s = -kx##

What I've done so far is find the spring force through

##F_s = -kx##

##F_s = -111*16.7##

## = -1853.7N##

My conclusion was that since this is the spring force, the tension force must be just the negative of that so ##1853.7N## because the net force has to balance out, but I am horribly horribly wrong.

the answer should be ##2.32kN##, which is a few hundred off from my answer. I'm thinking that there is maybe a force I'm missing in my calculations? Or does this problem have to do with potential energy of any sorts?

##F_s = -kx##

##F_s = -111*16.7##

## = -1853.7N##

My conclusion was that since this is the spring force, the tension force must be just the negative of that so ##1853.7N## because the net force has to balance out, but I am horribly horribly wrong.

the answer should be ##2.32kN##, which is a few hundred off from my answer. I'm thinking that there is maybe a force I'm missing in my calculations? Or does this problem have to do with potential energy of any sorts?

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