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Question

A spring (k\=400N/m) is stretched by 0.05m. What is the stored potential energy?

Options

Choose one · Correct answer highlighted

Explanation

Kinetic energy K=½mv² and potential U=mgh per NCERT. Energy conservation K+U=constant for conservative forces. Substituting m, v, h gives 0.5 J as energy, matching option A.

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