/sci/ - Science & Math

[Anonymous No.5749353]

[Anonymous No.5749356]

yes

[Anonymous No.5749357]

the helicopter will move with the bus.

I know this because I blew bubbles in my van and started driving. The bubbles stayed still relative to my van.

[Anonymous No.5749361]

>>5749357

You seriously had to test this?

I'd like to know the education level of /sci/

[Anonymous No.5749365]

>>5749361
I gradumated 7th grade

[Anonymous No.5749363]

It happens almost really. The bus is smaller than the Earth to it creates a stronger gravity pull (same reason black holes have such powerful gravity, they are really small, the smaller an object is the more powerful its gravity is)
so the helicopter would not fly, the bus will keep it in the same place

lets say the earth's gravity is 9, so it adds 9 tons to your body, but the bus being smaller than earth has a gravity piower of 92,000 so the helicopter weights over 92,000 tons it would destroy the bus but it has a gravitatory pull that prevents it

[Anonymous No.5749371]

>>5749353
if the bus accelerates the helicopter will move

[Anonymous No.5749374]

I want to say it will only move during acceleration and stay still otherwise

[Anonymous No.5749375]

>>5749357
But bubbles are light and move with the air being pushed by your car

[Anonymous No.5749382]

>>5749357
Yeah, but those bubbles have pretty close to neutral buoyancy. A person will fall backwards when the bus starts moving, but a helium balloon will move forward.

[Anonymous No.5749384]

It moves as if it were blown by a breeze equal to the bus's velocity.

[Anonymous No.5749477]

Technically the helicopter will move eventually based on relativity, whether it stays 'in place' or smashes into the rear window

[Anonymous No.5749506]

>>5749374

Nah. Unless something acts to accelerate the helicopter, it will stay at its original momentum.

[Anonymous No.5749505]

>>5749361
yeah dummy..science is all about testing shit..why did you think of it all by yourself u fucking autist?

[Anonymous No.5749525]

what happens if you throw a ball up in the air?
it hits you in the face right?

[Anonymous No.5749552]

>>5749363
Jesus fuck I literally became stupider after reading that.

[Anonymous No.5750752]

>>5749382
>a helium balloon will move forward.
why

[Anonymous No.5750779]

>>5750752
>a helium balloon will move forward.
>why

Because the bus moves, the air in the bus does not. It bunches up at the back of the bus so the pressure is slightly higher at the back of the bus than the front.

Helium balloons are lighter than air and get pushed by the higher pressure area to the front.]

Youtube it

[Anonymous No.5750806]

>>5749525
Yeah, because it already had angular momentum. The helicopter was in the air, then the bus moved.
Imagine a non-rotating Earth. You throw a ball up, then the Earth starts to rotate. It misses you.

[Anonymous No.5750859]

First of all, the question asked is not clear, is the 'stay in place' relative to the bus, or to the geographical location on the earth? Because of earth rotation the answer is actually in both cases no, but not significant. Anyways, i think you mean "If the helicopter is hovering in the bus and the bus starts moving, will the helicopter move with the bus?". That answer is no, since there is no significant force pushing the helicopter in the direction of movement. If it was a bubble, the air would provide enough force to make it move in the same direction as the bus but since the mass of a toy helicopter is a lot larger, it will not move from its geographical location.

[Anonymous No.5750868]

This thread is glorious

[Anonymous No.5750967]

>>5749363
>Comparing a bus to a black hole

[Anonymous No.5750989]

>>5749552
>>5750967

No, I think there might be some sense to it, don't quarks have the bigger mass the smaller they are? Or am I very horribly mistaken?

[Anonymous No.5750992]

>>5749361
Science is all about testing, not making assumptions, you fucking faggot.

[Anonymous No.5751038]

>>5750859
So if I was in a very fast spaceship, and I jumped, I would die because the spaceship's wall would hit me?

[Anonymous No.5751041]

>>5751038
If the spaceship suddenly accelerated to a very fast velocity, yes, you would die, and it would happen whether you jumped or not.

[Anonymous No.5751050]

>>5749363
You're too stupid to be on /sci/, and that's something.

[Anonymous No.5751064]

>>5751041
Ok, that answers my question. But if i was glued to the floor I would not die, right?

[Anonymous No.5751065]

>>5751038
this is really a nobrainer
even a powerful car pushes you back to the seat when you put the pedal to the metal
multiply that by 100 and you see you don't even need to jump

[Anonymous No.5751073]

>>5751064
No

[Anonymous No.5751082]

>>5751064
>But if i was glued to the floor I would not die, right?

You would if it accelerated quickly enough. It's no different than being in gravity that equals that acceleration. That's why they call it "g forces." If you accelerate to 1 km/s in one second, that's like being in 100 times Earth gravity. You would die pretty much instantly.

[Anonymous No.5751762]

Well, the force keeping the helicopter in the air would be still in effect, but it probably wouldn't increase significantly if the bus is in motion; so the helicopter would probably hit the back of the bus.

[Anonymous No.5751781]

The helicopter moves with respect to the air in the bus; the reason it flies is because it exerts forces on the air surrounding it. The air contained in the bus moves with the bus (there is some circulation of course, so it's not going to be exactly stationary), so the helicopter will mostly stay in place.

[Anonymous No.5751784]

>>5751781
er, stay in place with respect to its location in the bus. it moves forward with the bus is what i mean.

[Anonymous No.5751802]

I don't think the helicopter respects anything because he's an asshole that would mess around in a public bus

[Anonymous No.5751836]

why don't they put ejection seats in elevators that would fire a short burst just before the elevator hits the ground, that way they survive?

[Anonymous No.5751911]

>>5751836
It would be tremendously expensive and probably save a life every 25 years.

[Anonymous No.5751938]

>>5750989

Quarks are all one set size, as are protons and neutrons that are made up of these quarks. What you are thinking of is density - if you have a shit tonne of neutrons packed into a small enough space, that space would be incredibly heavy (And is how we get neutron stars). For their size, neutrons and protons are insanely massive (As in, to have mass, not 'big'). The problem is, almost all of an atom is empty space. If you expanded a helium atom to the size of, say, Manhattan (Assuming it was circular), with the electron shells at the edge, it's nucleus (Two protons, two neutrons) would be around the size of an orange.

[Anonymous No.5751945]

>>5751038

If the spaceship was already moving very fast, then so are you, so when you jump you continue moving forward at the same speed the spaceship was moving at, plus a bit upwards. If the spaceship was accelerating, though, then when you jump, the spaceship would increase speed while you were in mid air and yes, you would hit the back wall - probably pretty quickly.

[Anonymous No.5751953]

>>5749353
mfw people would rather ask everyone else the answer, and not perform the experiment for themselves.

[Anonymous No.5751967]

>>5751836
A short burst wouldn't do shit, they could put thrusters that would decrease the speed and eventually put the elevator to stop. But then an apartment in that building would be only for millionaires. Besides modern elevators are secured quite good against free fall and smashing into the ground.

About the question from OP, as many have stated, the helicopter would experience a breeze of air, but not enough to keep it in place so it would hit the back.

[Anonymous No.5751980]

>>5751836

Because elevators usually have two additional safety cables attached to a weighted trip system that can lock in place upon any sudden movements (Like a seatbelt). In the event that both of those fail, a few elevator shafts are designed to contain air below them, and this air bubble can act as a sort of pneumatic brake near the ground, giving them some sort of chance of survival.

[Anonymous No.5752058]

>>5751980
I don't think air is going to stop a several ton falling elevator mate.

[Anonymous No.5752095]

>>5752058

You'd be surprised - if the shaft below the elevator became airtight due to the elevator - now quick moving - and the slightly closing shaft, well, air will compress with increasing rigidity until the elevator slows enough so that the air can leak around the elevator (Or the air becomes rigid enough, killing everyone inside).

[Anonymous No.5752098]

>>5752058
It can if it's sealed tight enough.

It'd also heat up quite a bit.

[Anonymous No.5754185]

A body which is stationary or moving at constant velocity will remain doing so, unless it experiences a force.

The bus will move forwards, hence the air particles will do so as well, exerting a force on the helicopter,pushing it forwards. However, this would hardly be significant, so it would stay in place (relative to the ground), and the bus will move forwards. Ie, the helicopter will appear to be moving backwards relative to someone sitting on the bus