The force constant of a weightless sprin...

The force constant of a weightless spring is `16 N m^(-1)`. A body of mass `1.0 kg` suspended from it is pulled down through `5 cm` and then released. The maximum energy of the system (spring + body) will be

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The correct Answer is:

(i). 1.57s
(ii) `2xx10^(-2)J`

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