a body of volume 100 cm³ weighs 1 kgf in air. find its weight in water and it's relative density
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Relative density
= density of body /density of air
Density of body = mass/volume
= 1 x 10^-6 /100 kg /m^3
Density of air =1.2 kg/m^3
Relative density = 10^-6/1200 = 10^-4/12
=8.3 x 10^-6
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Now convert it into gf
1kgf=1000gf
0.9kgf=0.9*1000
900gf is the answer
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