Question

Calculate the mass of a body whose volume is 2m^3 and relative density is 0.52.

Answer 1

Relative density = 0.52
= Density of material / Density of water
So,
density of material = 0.52*Density of water = 0.52*1000 kg/m^3
= 520 kg/m^3

Now, Density = Mass / Volume
So,
mass = Density * Volume
= 520 kg/m^3 * 2m^3 = 1040 kg.