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## Homework Statement

9. A spring has an equilibrium length of 2.0 meters and a spring constant of 10 Newtons/meter. Alice is pulling on

one end of the spring with a force of 3.0 Newtons. Bob is pulling on the opposite end of the spring with a force of

3.0 Newtons, in the opposite direction. What is the resulting length of the spring?

(A) 1.7 m

(B) 2.0 m

(C) 2.3 m

(D) 2.6 m

(E) 8.0 m

## Homework Equations

F = - kx

## The Attempt at a Solution

I just don't understand why it isn't just 2.6m.

From F = 3N and K = 10N/m,

We find that x = .3 m, so each person pulls the string .3 m in his/her direction.

Why isn't the answer 2.6 then?