(Solved): A 11kg box moves back and forth on a horizontal frictionless surface between two different spnngs ...

A $$11\mathrm{kg}$$ box moves back and forth on a horizontal frictionless surface between two different spnngs, as shown in the accomparying figure. (Eigure 1) The box is initially pressed agaunst the stronger spring, compressing it $$3.9\mathrm{cm}$$, and then is released from rest. By how much will the box compress the weaker spring? Figure 1 of 1 Express your answer in centimeters.