What are the two forces acting on any body inside a liquid or gas?

Any body inside a liquid or gas is affected by the force of Archimedes and the force of gravity. The Archimedes force is found by the formula F (a) = pgV, where p is the density of a liquid or gas, g is the acceleration of gravity, V is the volume of a submerged part of the body; the force of gravity is found by the formula F (t) = mg, where m is the mass of the body, g is the acceleration of gravity. The behavior of a body in a liquid or gas depends on the ratio between the modules of these two forces: 1) F (a)> F (t) – the body floats until it starts to float; 2) F (a) = F (t) – the body floats; 3) F (a) <F (t) – the body is sinking.