Ok...I've searched google etc.

Many people have said it's possible and many have said that it's not. What would happen if you were standing in a descending lift like the ones at shopping centres or casinos and you jumped? Would your feet stay off the ground and you would be flying?
I'm not going to the shops with a lift for a while either so I can't try it out for myself.

Please provide a site or something you know of that explains this if you too have always wondered what happens.

are you talking about a lift that goes down while you're jumping?
if so, it all depends on the speed it goes down.

lift ? you mean elevator ? You don't fly, it's like the myth that you can save yourself in a falling elevator by jumping right before it hits the ground. But you're not really jumping, you're pushing the elevator down, you stay in the same place when you do that, AND YOU (Please refrain from swearing)ING (Please refrain from swearing) UP YOURSELF

If you jumped while the elevator was going down you wouldn't go any higher than normal because the elevators downward force also affects you. However, if you jumped right before the elevator started going down then you would end up higher since the downward force of the elevator has not yet affected you.

I don't have any source, it's just grade 11 physics :p

Pretty much same with the subway.. you don't go back when you jump on the train.

Me and my cousin did something like this in a boat before.

It would either throw our heads into the ceiling, or forcefully shove us down to the floor.

But boats are different, since they are rockin' on the sea, up and down randomly :|

If you managed to start freefalling after the jump, you'd catch up with the lift floor in no time, because you speed up as you fall.

I do this all the time in the elevator when it's first starting to go down. Pretty fun stuff.

here we go if your going down in a elevator and you jump your just slowing down the elevator is still going the same speed but the force of you jumping reduces the speed at your traving

(Please refrain from swearing) you jebus

ZOMG WUT IF U HAD A PRACHOOTE!?

i think mythbusters did that one once but i didnt see it

Theres a way to do it while going up. Ok, i know it sounds wierd, but if you time it right, you jump higher. its like, as soon as the lift is slowing down, you jump, the upwards momentum will send you higher. It's pretty cool, especially if the lift is going fast.

quote:Originally posted by 117Theres a way to do it while going up. Ok, i know it sounds wierd, but if you time it right, you jump higher. its like, as soon as the lift is slowing down, you jump, the upwards momentum will send you higher. It's pretty cool, especially if the lift is going fast.



yes, just jump as the elevator is slowing down.

In Albany, near my college, there is a 46 story building that has a very fast elevator that services the top 10 floors. When i say fast, I mean Fast.

I was in it a year ago, and when it was getting to the top and started slowing down, it started slowing down even more aggressively. I jumped, and I jumped right into the ceiling.... it hurt because I hit it a lot harder than I would have expected, but I wasn't expecting to hit the top at all.

Same thing goes for when you're going down. If you jump while it is going down, you're in the air longer than you would otherwise be, ESPECIALLY in a fast elevator like this.

Really, all of this stuff is insignificant in a slow, normal elevator/lift, but if you live near any tall buildings (over 40/50 floors) odds are that they have some fast elevators that service the top of the building, so you should check that out

OMFG!!! LumpyFerret is back

and mickle89 i dont know what ur talking about :P

Yeh Mythbusters did the one for jumping in a falling elevator to stop yourself from dying, it's a crock of (Please refrain from swearing).

If you're really good at jumping you can slow your speed down a couple feet/second which might possibly save you, depending on how far you fell from.

And as for being in the air longer when the elevator is going down. I can't see that being true. You and the elevator are going at the exact same speed while your just standing there. Basically, you could say that you and the elevator are not moving at all, and the rest of the world is rushing past you at whatever speed you're going. If you jump, then yeah, you'll go up the same distance and come back down in the same amount of time as if you weren't moving. If the elevator quickly accelerated while you were in the air, then of course you would be in the air longer. You might hit your head too if it accelerates really fast.

I'm pretty sure I'm right, but hey, who knows.

everything falls at 9.8 m/s squared. the elevator is guided by a rope and is being lowered at a constant rate,therefore you would catch up to the lift floor in no time inevitably ending your fall.

quote:Originally posted by damnnation(Please refrain from swearing) you jebus


uh? thank you?

Why try to jump? Wouldn't you go Rambo, tearing open the doors and jumping out, if you got your timing right?

quote:Originally posted by mickle89Ok...I've searched google etc.

DID YOU ASK JEEVES, YES OR NO>??!?!?

!google Jumping in shopping centre lifts

:O

I hate jeeves. My mum used to be such a search noob. For my homework she always said "goto ask jeeves" and I'M LIKE WTF ASK JEEEVES DOESNT ANSWER THE QUESTION LIKE OMG WTF BBQ.

Ok, so we determined that ABSOLUTELY nothing happens to u if the lift is going at a continuos speed, right? consider it like the Earth's rotation, we don't fly off because its constantly moving, never slowing down, never speeding up. If it did, we'd be splattered.

So, we can only float when the lift is changing speeds.

quote:Originally posted by wormdundeeYeh Mythbusters did the one for jumping in a falling elevator to stop yourself from dying, it's a crock of (Please refrain from swearing).


I watched that :D

aha....good point 117. Because doesn't the Earth travel at a few thousand km/h and when we jump up we dont see the world go past.

Actually, we aren't flying off because the Earth is constantly moving. We aren't flying off because of gravity. If gravity didn't exist, the Earth's movement would just fling us off into space.

quote:Originally posted by 117Ok, so we determined that ABSOLUTELY nothing happens to u if the lift is going at a continuos speed, right?


No, something is happening, but the elevator is going too slow to notice it.

What do you mean something is happening? Nothing is happening besides the basic forces.

You jump up and gravity pulls you back down. You are not in the air any longer than if you jumped while standing on the ground.

Maybe you could specify what you mean vijcht.

NOOO MICKLE WHY HAVE YOU FORSAKEN MEEEE!!!!
[IMAGE]

Yes, the earth is constantly moving. Has no one here read What Einstien Told His Barber? It's a pretty good book. If the earth were to stop, the force would be so massive that we would... be crushed. Imagine, all the buildings suddenly flying away....

Edit: Okay, put it this way. If you were born in a train moving at 200 miles per hour in a straight line, you would think the train is standing completely still, yet the world is moving past. Okay, so let's say you can see and have senses. You're an insta-10 year old (one of those add water things). So, if the train were to stop, you would fly forward. But if it were to keep moving, you wouldn't mind, cos it's just a piece of non moving ground to you.

quote:Originally posted by wormdundeeWhat do you mean something is happening? Nothing is happening besides the basic forces.

You jump up and gravity pulls you back down. You are not in the air any longer than if you jumped while standing on the ground.

Maybe you could specify what you mean vijcht.


Yeah, I was thinking about changing speeds instead of constant. I realized my mistake and then assumed that my post would be so vague that nobody would bother correcting me, so I just left it. :)

jumping in an elevator may seem logical..as well as jumping in a subway and you flying backwards or somthing lol..they dont work like that..altho i guess if you could levitat..the car would hit you because you arent moving.but then again ........lmao oh no ive gone cross eyed..(forget it i just confused myself)

Wanna know Y? Imagine, a train suddenly stops, u'd go flying forward because of lateral motion (or is it transverse? Who cares, it just makes u fly becos of momentum). Now, since u left the train, ur still flying forwards at a really high speed (almost the same speed as the train). When u land, ur ahead of ur original position. To go backwards, u'd jump backwards, thatt would only slow down the lateral (or transverse) motion, making the train go underneath u. So technically, jumping backwards is like freeezing in the air and slowing down above the train, cos ur defying forward motion. But whatever you do, DON"T TRY IT ON A TRAIN FULL OF PPL, IT CAN HURT THEM. ESPECIALLY ON JAPANESE BULLET TRAINS.

quote:Originally posted by 117Yes, the earth is constantly moving. Has no one here read What Einstien Told His Barber? It's a pretty good book. If the earth were to stop, the force would be so massive that we would... be crushed. Imagine, all the buildings suddenly flying away....


define flying away... if you mean that all the buildings and people would fly off into space, you're horribly wrong.


the spinning of the earth, albeit constant, generates a force, the centripital forice, which occurs when anything is spinning. the centripital force acts from the center of the rotating mass directly outwards, so the spinning of the earth is trying to throw us away. The reason we don't go flying off into space, as was mentioned, is because gravity easily overcomes this force.

An interesting question that has come up on my mind as I was reading this:

It has been proven (I can't find the source) that time slows down at extremely high speeds (Of course, this is extremely fast). So if, say in the planet of Soldat (just a name) spins at a rate of 12000mph (compared to 3000mph of Earth), and the people of Soldat comes to earth. Will their life span be lengthened?

Leo, time slows down at both high speeds and low gravity but it's such a small difference (unless we're talking about speeds extremely close to the speed of light) that you would barely notice.

If we went at the speed of light, we wouldnt be able to see anything, cos the light wouldnt have time to reflect.

Wow this could really get the Christians thinking.

Another Idea...If there was a cylindarical hole about 1 metre radius down the middle of the earth (north pole to south pole), forgetting about the lava/molten/liquid things...could you throw a ball down so that it would stay floating in the centre?

It wouldn't fall straight through right? - Because of the gravity acting on the centre of the Earth?

Edit: maybe not - - theres no centre :\

Yeh Leo, going at 12,000 mph would not slow down time enough to be noticeable.
However, your whole idea of lengthened lifespan is flawed.

Say that the planet Soldat is going at 9/10 the speed of light, to the people on the planet, time is normal and whatever, if you lived there your whole life, it wouldn't be anything special to you. If you made your way over to Earth when you were, say 20, it still wouldn't be any different, because Earth's time is now your time also.

However, if, after living on Earth for 50 years you went back to Soldat, while you had aged 50 years, the people you know on Soldat have aged maybe only 12 years.

So, if you originally lived on Earth, then went to Soldat for 40 years, and then came back to Earth, you would have an extended lifespan relative to the people on Earth, you wouldn't actually have any longer time to live.

In any case, if 2 babies were born at the same "time" on Earth and one on Soldat, the on Earth would age faster.

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Going the speed of light is impossible, as mass increases exponentially the closer you get to lightspeed.

Even if you were going at 0.9999999999999999c (c being speed of light) you would still be able to see because light always moves at 300,000 km/s relative to you, even if you are going exceedingly close to the speed of light.

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There's no centre? What do you mean.

quote:Originally posted by wormdundeeYeh Leo, going at 12,000 mph would not slow down time enough to be noticeable.
However, your whole idea of lengthened lifespan is flawed.

Say that the planet Soldat is going at 9/10 the speed of light, to the people on the planet, time is normal and whatever, if you lived there your whole life, it wouldn't be anything special to you. If you made your way over to Earth when you were, say 20, it still wouldn't be any different, because Earth's time is now your time also.

However, if, after living on Earth for 50 years you went back to Soldat, while you had aged 50 years, the people you know on Soldat have aged maybe only 12 years.

So, if you originally lived on Earth, then went to Soldat for 40 years, and then came back to Earth, you would have an extended lifespan relative to the people on Earth, you wouldn't actually have any longer time to live.

In any case, if 2 babies were born at the same "time" on Earth and one on Soldat, the on Earth would age faster.

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Going the speed of light is impossible, as mass increases exponentially the closer you get to lightspeed.

Even if you were going at 0.9999999999999999c (c being speed of light) you would still be able to see because light always moves at 300,000 km/s relative to you, even if you are going exceedingly close to the speed of light.

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There's no centre? What do you mean.
yes this is true...it would take all the energy in the universe (which is impossible to gather) to get that object to move that 0.0000000000000001c speed to get it movin the speed of light

So theorically, what would happen if one manages to move an object at the speed of light? Does it turn into energy? Or does the universe end?

You'd see light, but then again, the forces acting on your eyes would give you tunnel vision, you'd black out, and you couldn't stop very easily, not to mention breaking from gravity and flattening. Actually i thought light would be in streaks.

quote:Originally posted by Leo Da LunerfoxSo theorically, what would happen if one manages to move an object at the speed of light? Does it turn into energy? Or does the universe end?
im guessing that there would be no enercy in the universe...leaving it dark and cold....btw that post bye mikeshinoda was me...my computer has faulty and mike on it so somethimes i forget to log out on my bros account