When you jump into a pool where is your weight “carried”? Does it increase the pressure on the bottom of the pool?
In: Physics
It’s carried by the buoyancy of the water. Let’s imagine you jumped in feet first and are completely underwater. Water exerts pressure in all directions based on the weight of the stuff above it. They water at your feet has more stuff above it than the water at your head, so there’s an upward force at your feet and a smaller downward force at your head which creates a force pushing you up. If you were a bowling ball the upward force would be smaller than your weight and you would sink to the bottom.
You held your breath though, so the upward force exceeds your weight and you are pushed upwards. After you break the surface the only downward force is from the atmosphere and once the force of your weight is equal to the upward force of the water you stop rising and float. This happens when the volume of you underwater is the same volume that your weight in water would take up. If you weigh 135 pounds, you will displace 135 pounds of water. You are bigger than 135 pounds of water, so some of you will be sticking out.
Technically, pressure goes up over the whole pool because you being in the water makes the water level go up meaning the water is deeper everywhere else. An Olympic swimming pool has 5.5 million pounds of water, so our 135 lb person makes the bottom feel 1.000024 times the pressure without you in the pool.
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