How much will a body of weight 50 kg ,weigh in water if it displaces 3 litres of water ?

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Solution

Step 1: Given data
Weight of body =50 kg .
Amount of water displaced = 3 litres .
Step 2: Formula
According to the principle of buoyancy .
Weight of body in water = weight of body - weight of water displaced by body when submerged
1 litre of pure water equals 1 kg.
Step 3: Calculation
Weight of body in water =weight of body in air - weight of water displaced by body.
Weight of body in water = $50 k g - 3 k g$
Weight of body in water = $47 k g$
Hence, Weight of body in water is 47 kg .

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