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$5\mathrm{.}00$

$1$

A $2\mathrm{.}7$ kg glass jar is put in a packing box full of corrugated boards. The packaging material has negligible weight $(W=0)$ and negligible damping $(c=0),$ and has force$-$deflection relation described as shown in $.$figure

The packing box is dropped from a height of $3$ m $.$ Considering that the box will not rebound from the :ground, determine

$[$ Hint: use a simple spring$-$mass model for the motion $]$ the amplitude of vibration of the glass jar $-1$

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$5\mathrm{.}00$

$2$

$2-$ the maximum acceleration of the glass jar