×\'s MasteringPhysics: Hw6w Error 401 . session.masteringphysics.com/myct/itemVi

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×'s MasteringPhysics: Hw6w Error 401 . session.masteringphysics.com/myct/itemView?offset-next&assignmentProblemiD; Problem 7.52 MasteringPhysics II of 22 Problem 7.52 A 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs, as shown in the accompanying figure. The box is initially pressed against the stronger spring, compressing it 4.4 cm, and then is released from rest 16 N cm Prictioniess sarface Q Tap image to zoom Part A By how much will the box compress the weaker spring Express your answer using two significant figures

Explanation / Answer

(A)Applying energy conservation,

PEi + KEi = PEf + KEf

32(0.044^2 /2 )+ 0 = 16(x^2) /2 + 0

x = 0.062 m = 6.2 cm

(B) Aplying energy conservation,

32(0.044^2)/2 = 1.5 v^2 / 2

v = 0.203 m/s

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