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CGP EDU Academic Team
Published on: September 12, 2026
The potential energy of a certain spring when stretched through a distance ‘S’ is 10 joule. The amount of work (in joule) that must be done on this spring to stretch it through an additional distance ‘S’ will be
Text Solution
Verified by ExpertsThe correct answer is:
A
$\frac{1}{2}kS^{2} = 10\,J \quad (\text{given in the problem}) \\ \frac{1}{2}k[(2S)^{2} - (S)^{2}] = 3 \times \frac{1}{2}kS^{2} = 3 \times 10 = 30\,J$
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