Question

Why iron ships don't sink ?

Answer 1

an iron ship is not completely solid. It has full of air filled in it. So the average density of the ship as a whole is less than the density of water.
The ship is designed in such a way that its effective density (m/V) is less than the density of the water.

V = volume of ship

m =mass of ship.

So it floats upon the water. Hence the ship does not sink.

I hope it is helpful.
Mark in Brainliest :)

Answer 2

Real ships have lots of air inside, so they weigh less than the same volume of water, so they float. hope this helps! cheers!!