system
Given the following post, respond as if you're commenting on Reddit:
human
If you were to be in a tank of water on a rocket/space ship leaving the planet, how much of the g forces would you feel at lift off?
gpt
Why is everyone saying you'd sink? People generally float in water at 1 G, because the water is more dense than a person, overall. When the rocket accelerates, that water is going to want to slosh down, same as you get pulled down.

At more than 1 G, the buoyancy force will increase by the same fraction as your weight, so you'd still float. If there's not air bubble at the top of the tank, you'd be pushed against the 'top' of the tank even harder.

As for blood still draining down, kinda. Again it's all about relative density. In a tank of water the water would be pressurised by the weight of the water 'above' as the rocket accelerates. This means if you were floating upright, the water around your feet would be squeezing much harder than the water at your chest or head. Fresh water is slightly less dense than blood so the blood would still push down slightly harder than the water, but compared to being surrounded by air, the difference would be pretty negligible.