What keeps the ship afloat?

The fact that ships do not sink is an achievement of physics. A buoyant force acts on a body that is immersed in any liquid (Archimedes’ law). Its value is equal to the mass of water that is displaced by the body during immersion. It will never sink if the buoyancy force is greater than or equal to the weight of the body itself. Ships are built based on this law, so they do not sink.



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