The largest planets in the solar system – Jupiter, Saturn, Uranus, Neptune – are composed of gaseous matter

The largest planets in the solar system – Jupiter, Saturn, Uranus, Neptune – are composed of gaseous matter. If a solid body plunges into any of these planets, then in what direction will the buoyancy force act on it?

Since the largest planets of the solar system – Jupiter, Saturn, Uranus, Neptune, although they consist of gaseous matter, they have a huge mass and any body that falls into the gravitational field of these planets will rapidly approach them with a huge acceleration of free fall. If a solid body plunges into the atmosphere of any of these planets, then a buoyant force directed upward will act on it. But whether the body will sink, float or float in this atmosphere depends on the density of the substance that makes up the body.