as a person dives towards the bottom of a swimming pool, the pressure increases noticeably. (density of water is constant)
2007-05-14 22:13:30 · 3 answers · asked by mawbrey 1 in Science & Mathematics ➔ Physics
The buoyant force is equal to the weight of the displaced fluid. As a person descends in a swimming pool it doesn't change appreciably.
2007-05-14 22:21:48 · answer #1 · answered by jsardi56 7 · 0⤊ 0⤋
Actually, it decreases. True, the density of water remains the same. However, the density of the gases inside the person does not. The weight of the water at lower depths actually begins to compress those gases. As they become more dense, they become less buoyant. If you watch bubbles rise from the bottom of a pool, you will notice that they actually speed up towards the top of the water. I agree that in a pool, this effect is negligible. However, it does occur.
2007-05-15 05:57:35 · answer #2 · answered by Shane S 1 · 0⤊ 0⤋
The buoyant force arises from the pressure difference between the bottom and top of a submerged body. Because water is incompressible, this does not change with depth.
2007-05-15 05:23:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋