So some days ago we where talking about gravity vs buoyancy and I told you all that without gravity we wouldn't have an acceleration vector downwards for the whole system to work, I asked my professor today and he confirmed it, as I know you guys wouldn't belive I also did the calculations, it's impossible for us, the air, etc to stay glued on earth or smt without gravity

would be like if we where in space btw if gravity doesn't exists

The conclusion= buoyancy only exists because gravity exists

Why is 'acceleration' necessary?

This is a very interesting question

As G is a time factor not a 'force' soooooooo.......

The air is also affected by the gravity

Gravity? It's a force

g is in newtons

https://www.youtube.com/watch?v=PolFadm-lgU

F = mass * acceleration

G is a theory, also, soooooooooo......

g is a force rhat we observe

https://www.youtube.com/watch?v=0G3TzQhqatE

Let me try watching those videos so I can reply to them

Thanks for playing though, metaphysics dont werk with us 😉

But I was using the archimedes principle and simple chemistry, it's not even relativistic o_0

These equasions where discovered without the need of a machine, just simple experiments

Well I will do some research concerning those videos

Your Prof wont teach you these things, hmmmmmmmmm......

Listen to more metal
\ ../,

What do you mean?

@Vitmar You're correct - an accelerative force is required for buoyancy to work. Without one, there is no designated vector.

And the end result would be 0 xD

Times 0 multiplication

Ok let's talk about that video of the key

He argued that the key isn't accelerating therefore P= m*g is wrong

Let's do a simple experiment

Let's supose a robot you made can have an acceleration or 0.5 m/s^2

Now put a wall on his front and try accelerating it

Your speed will be 0

Your resulting force is 0, but that's because of Newton's action and reaction law if I record it right

If you look at the whole system the acc may look like zero, but look knly at the car and the acceleration is 0.5, if it have a mass of 2kg it's making a force of 1N on the wall because F=0.5*2

That's actually how the scale works

If you didn't had gravity the scale would say the mass of the object is 0

Then why is gravity missing

Gravity is not missing

The reason your nose break when you hit a wall too fast is the same that why the key isn't moving

Newton's law of action and reaction

Mass of the key= 3; gravity = 9,8 m/s^2

F=3kg*9.8m/s^2=29.4N