A block is left in the equilibrium position as shown in the figure. If now it is stretched by \(...

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A block is left in the equilibrium position as shown in the figure. If now it is stretched by \( \frac{m g}{k} \), the net stretch of the spring is
(a) \( \frac{m g}{k} \)
(b) \( \frac{m g}{2 k} \)
(c) \( \frac{2 m g}{k} \)
(d) \( \frac{m g}{4 k} \)
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