Question

A ship of mass 1200 tones floats in see water. What volume of see water does it displaced? If the ship enters fresh water, what mass cargo must be unloaded so that the same volume of water is displaced as before?desity ofseewater=1025kg/m^-3 and density of fresh water=1000kg/m^-3.

Answer 1

when the ship enters the fresh

 the volume  replaced will be  1 ton

if it enters fresh water it becomes 0.17 ton

   so the mass of cargo that should be unloaded is 0.3 ton.