The discussion centers on the relationship between buoyant force and Newton's third law of motion. It clarifies that the buoyant force, which acts on an object submerged in fluid, is indeed matched by an equal and opposite force exerted by the object on the fluid, although this reaction force does not have a specific name. The buoyant force arises from the pressure exerted by the fluid, and according to Archimedes' Principle, it is equal to the weight of the fluid displaced by the object. Participants debate whether buoyant force and weight should be considered action-reaction pairs, with some arguing that they act on the object rather than being direct pairs. Ultimately, the buoyant force is a result of pressure integration, applicable regardless of the object's state in the fluid.
