Question: Two identical horizontal springs are attached to opposite sides of a box that sits on a frictionless table. The outer ends of the springs are

Two identical horizontal springs are attached to opposite sides of a box that sits on a frictionless table. The outer ends of the springs are clamped while the springs are at their equilibrium lengths.
Then a 2.0 N force applied to the box, parallel to the springs, compresses one spring by 3.0 cm while stretching the other by the same amount. What is the spring constant of the springs?

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