A block of mass m, lying on a smooth horizontal surface, is attached to a spring (of negligible m...

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A block of mass m, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant k. The other end of the spring is fixed, as shown in the figure. The block is initially at rest in a equilibrium position. If now the block is pulled with a constant force F, the maximum speed of the block is
[JEE Main - 2019 (January)]

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Mean position toh nature length wali position hogi na sir because at mean position sum of all the force =0 hoga

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