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A solid weighs 80g in air and 64g in water .calculate the relative density of solid. State if object would sink or float if kept in water

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Upthrust = Weight of liquid displaced

Weight of water displaced = 80-64 = 16

Now, density of water = 1g/cm³

1 g/cm³ = 16 g / x cm³

Therefore, volume of water displaced =

x = 16 cm³

So, volume of the solid = 16 cm³

It density = Mass/volume = 80/16 = 5 g/cm³

Relative density = Density of solid /Density of water = 5/1 = 5

Now, since the solid's density is more than water, it will sink in water.