A block attached to a spring, pulled by a constant horizontal force, is kept on a smooth surface...
A block attached to a spring, pulled by a constant horizontal force, is kept on a smooth surface as shown in figure. Initially, the spring is in the natural length state. Then the maximum positive work that the applied force \( F \) can do is (given that string does not break)
img src=https://penpencil-static-content.s3.ap-south-1.amazonaws.com/5eb393ee95fab7468a79d189/cqk454oq9asfkodd4er1sbdy2.png /
(1) \( \frac{F^{2}}{k} \)
(2) \( \frac{2 F^{2}}{k} \)
(3) \( \infty \)
(4) \( \frac{F^{2}}{2 k} \)
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