Why do ships sink into whirlpools and people fly up into tornados?

Bernoulli principle. And conservation of angular momnetum.

Imagine a cylindrical portion of air contained in hollow cylineder between radii R and R+ΔR. Lets say it has specific angular momentum per unit mass M. As this air enters the tornado core the radius shrinks to r, momnetum is rougly conserved and tangential velocity is increased by factor R/r.

Increase in velocity means decrease in pressure. Everything in the vicinity gets sucked up inside.

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A gust of wind 200mph ~ 100m/s ~ 0.3Mach creates sucking pressure about 1atm* Mach² ~ 0.1atm ~ 1000kg/m². No wonder a person with cros-section are of about 0.5m² is easily sucked in.

♠ whirlpool has low pressure in the eye; the solved air turns into bubbles decreasing density of water; with buoyancy decreasing the ships sink;

♣ this is the only real reason why Bermuda waters are notorious; cold and warm currents meet, the cool water warms + low pressure, the density decreases (as if water boils up); the level of whirlpool is not visibly lowered – some 10 meters in a radius of one km perhaps;

♣ there’s another case of whirlpool mentioned as úlovo in rivers with strong currents; the stronger current the more slope; but people are drowned because of panic mostly; an experienced swimmer just dives the deeper the better, then swims under the water as far as possible to emerge in a safe place; (merde! whom am I talking to!?)

hmmmmm......

What happens to objects at the bottom of a whirlpool? Or at the top of a tornado?

I hadn't really thought about this one too much because I've been so busy............The more I think about it, well, the more I try to figure out what the key difference is. Unfortunately, I need to get going.

Great question.

Because when a whirlpool starts it starts in the water so it suck you sown into the water, and when a tornado starts it starts in the clouds in the sky, so it pulls you toward the the clouds or sky. Just guessing

well if a person was in a whirlpool they would go down too juast as a ship does and if a ship was in a tornado it would go up just as a person would, its just different forces whirl pools are a force that pull you down and a tornado is just like a lot of wind... .and just like a little wind can blow around a piece of paper alot of wind can blow around a person

im guessing because you are on top of a whirlpool when you go down into it and you are at the bottom of a tornado when you fly up into it. but im just guessing.

a whirlpool is just swirling water, so gravity pulls it down (like toilet water down a drain).

A tornado is kind of an updraft, so the air pulls you up.

maybe because a whirlpool is some kinda downward force of matters, while tornadoes are upward forces of, well, debris and stuff, and both have loads of energy in it.

Suction force of the water and air respectively.

because a wirlpool spins the opposite way a tornado does whitch means it pulls its force downwards