A cubical block of wood of edge \( 3 \mathrm{~cm} \) floats in water. The lower surface of the c...

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A cubical block of wood of edge \( 3 \mathrm{~cm} \) floats in water. The lower surface of the cube just touches the free end of a vertical spring fixed at the bottom of the pot. Find the maximum weight that can be put on the block without wetting the new weight. Density of wood \( =800 \mathrm{~kg} / \mathrm{m}^{3} \) and spring constant of the spring \( =50 \mathrm{~N} / \mathrm{m} \). (Take \( g=10 \mathrm{~m} / \mathrm{s}^{2} \) )
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