9. A body of mass 70 kg, when completely immersed inwater, displaces 2 – InterviewSolution

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9. A body of mass 70 kg, when completely immersed inwater, displaces 20,000 cm? of water. Find : (1) theweight of body in water.

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Explanation:

VOLUME of water displaced is 20000 cm^3

THEREFORE buoyant force = V ro g = 20000 × 1 × 10 dyne = 2 × 10^5 dyne = 2 N

now WEIGHT of body in water = 70 g - 2 N = (700 - 2)N = 698 N

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9. A body of mass 70 kg, when completely immersed inwater, displaces 20,000 cm? of water. Find : (1) theweight of body in water.