A block of mass \( 2 \mathrm{~kg} \) is dropped from a height of 40 \( \mathrm{cm} \) on a sprin....

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A block of mass \( 2 \mathrm{~kg} \) is dropped from a height of 40
P
\( \mathrm{cm} \) on a spring whose force-constant is \( 1960 \mathrm{~N} \mathrm{~m}^{-1} \). The maximum distance through which the spring is compressed by
(1) \( 5 \mathrm{~cm} \)
(2) \( 15 \mathrm{~cm} \)
(3) \( 20 \mathrm{~cm} \)
(4) \( 10 \mathrm{~cm} \)


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