Question

What can you say about the average density of a ship floating on water in relation to the density of water?

• A. Average density of ship is more than the density of water.
• B. Average density of ship is less than the density of water.
• C. Average density of ship is equal to the density of water.
• D. None of the above

Answer 1

The correct option is B Average density of ship is less than the density of water.

Average density of ship is less than the density of water.

It is important to realize that, while they are related to it, the principle of flotation and the concept that a submerged object displaces a volume of fluid equal to its own volume are not Archimedes' principle. Archimedes' principle, as stated above, equates the buoyant force to the weight of the fluid displaced.

So, according to law of flotation, a body will float in a fluid if it has less density than the fluid.
So, in order for the ship to float, its average density must be less than the water.