if you jump up in an aeroplane why doesn't the floor move from under you.?

Answer 1

It has nothing to do with pressurised environments, or speed. When you jump up in an aeroplane, it DOES move downward. You have exerted a force necessary to lift, say, an 80kg mass 0.5m against the force of gravity (if you're fairly big). That creates an equal force in the opposite, down direction. That force will move a 400 tonne aeroplane a distance of 0.5m x 80 /400,000, or 40/400,000 = 1/10,000 of a metre - a tenth of a millimetre! Next to nothing, basically.
But that's just the inertia effect; the aeroplane also exerts a resistance on the air holding it up, reducing the miniscule to the microscopic.

Answer 2

Alot of people are getting the right answers.

If you jump inside an aircraft while it is in forward motion, you will not move... this is due to the fact you are inside a pressurized environment and travelling at the same speed. But if you were outside the aircraft (good luck hanging on to do this) and jumped, you would hit a wall of air per say and have the aircraft proceed without you.

However as the others did mention, if you were jump inside the aircraft while the it banks or dives or has a sudden airbrake or stop, you will not be landing where you jumped from.
The dive and banking if done fast enough and steep enough will give a sense of zero gravity. A sudden stop on the other hand will have you propelled like a missile towards the cockpit and your sudden yet messy demise. Travelling at 450+ mile per hour does that to you.

Answer 3

Airplane is the correct spelling of the word in American Heritage Dictionary of the English Language. Aeroplane is considered an antiquated alternate in the U.S., though it may be the correct form in Great Britain. If you use the spell-checking function on this site, you find it will highlight aeroplane and suggest it be replaced with airplane.

Answer 4

The answer is because you are moving at the same speed at the plane. Its the same with the earth if you jump you dont end up a mile away from where you jumped from because even though the earth is moving at 100's of thousands of miles per hour you are moving at the same speed with it. A simpler example is if you are riding a skate board. You jump and you will land on it again, cuz you and the skateboard were moving at the same speed and in the same direction.

Answer 5

How do you know it doesn't?
If you jump up, you push the floor down, so there is a reaction even if small.
Now if you are talking about the floor moving horizontally towards the rear of the plane, you are moving at the same speed as the plane, so that even as you jump up, you have all the velocity of the plane which carries you forward at the same speed as the plane.

Answer 6

Because you are moving at the same speed as the aeroplane.

Answer 7

Because you are travelling at the same speed as the plane due to being in a enclosed atmosphere,even if the plane is doing 600mph your body is travelling at the same speed when you jump.
However if you were able to suspend yourself in mid air and the plane braked severely,you would go through the cockpit !lol

Answer 8

Because you are travelling at the same speed when you jump. Now if the plane turns while you are in the air, you will see it move. You probably wouldn't like that.

Answer 9

I'm too stressed in an aeroplane to think about questions.

Answer 10

"Because you are travelling at the same speed when you jump. Now if the plane turns while you are in the air, you will see it move. You probably wouldn't like that."

or if the plane dives you will hit the ceiling.