Buoyancy is defined as the ability of something to float in water or air, or the ability of water or other liquids to keep water afloat, or an optimistic disposition.
When a boat floats in water, this is an example of buoyancy.
When saltwater has the ability to help things float, this is an example of buoyancy.
Step 2: Archimedean law of buoyancy:
According to Archimedes' principle, a body immersed in a fluid experience an upward force equal to the weight of the displaced fluid.
This is the first equilibrium condition. The above force, known as buoyancy force, is located in the center of the submerged hull, which we refer to as the buoyancy center.