What will happen if you simultaneously pull both ends of a spring with same force ?

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Science Advisor Homework Helper In this question, the center of the spring remains stationary
If you apply a force of 5N to one side of a spring, and 5N to the other side, then the spring will compress according to F=kX. If K=1, then X=5m. This is similar to what happens when you apply a force of 5N to a spring attached to a wall, right? the wall applies an equal and opposite force back since the spring is not accelerating

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