If stretch in a spring of force constant \( \mathrm{K} \) is double...

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If stretch in a spring of force constant \( \mathrm{K} \) is doubled. Calculate
(a) Ratio of final to initial force in the spring (b) Ratio of elastic energies stored in the two cases (c)
\( \mathrm{P} \) Work done in changing to the state of double stretch.

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