Estimate how long is the spring during this motion

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A weightless spring of force constant 2.50N/cm is 15.0 cm long whennothing is attached to it. It is now used to pull horizontally on a12.5 kg box on a smooth horizontal floor. You observe that the boxstarts from rest and moves 96.0 cm during the first 1.60 s of itsmotion. How long is the spring during this motion?

Reference no: EM13655103

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