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Pls help me anyone with question 8

Answer»

you to understand whatever law, formula you use when you solve problems! here the logic is very simple, we want to use hooke's law(note : the block is ELASTIC (can be thought of as a strong spring with hooke's constant 'k')Now by Newton's second law the External force 'F' must be equal to the Bouyant force 'B' + the Hooke's force 'H' (which arises due to compression) ,But from COMBINING N2nd law + Archimedes PRINCIPLE( revise if you forgot)F = B + H= (2¶) × (Volume of block) × g + H I will continue from here after sometime, I GOT an important WORK..



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