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  LiveWire / Teen Forums / Science & Business / Viewing Topic

The Airplane Conveyor Belt Problem
Replies: 18 — Last Post April 25 3:46pm by obvious child
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Choice Votes Percent  
Yes, it will take off 8 34%
No, it will stay stationary (relative to the ground) 8 34%
It will randomly explode killing yourself 1 4%
1/4 point / noob 6 26%
Vote Now! 23 Votes Cast
( marshmellowman )


Enlightened One
Patron 		Reply
So this has been a problem that has puzzled many people. I will explain the situation and then you dear LW users have to respond. I will later explain the full solution, but first, the question:

Suppose an airplane is placed on a conveyor belt travelling at a speed that will allow it to take off. However the conveyor belt is on in the opposite direction, so that the speed of the conveyor belt equals the speed of the airplane. Will the airplane take off?

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11:00 am on April 24, 2008 | Joined Feb. 2007 | 354 Days Active
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MattJ


Dairy Product Addict
Sustainer 		Reply
Yes. THey proved it on Mythbusters, a show.

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11:01 am on April 24, 2008 | Joined Mar. 2008 | 36 Days Active
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Catalyst11


Dairy Product Addict 		Reply
Yes, if the airplane is going fast enough then it would be able to lift off the ground.  It's the same idea as driving a car, the faster you go the less traction you have, so the further from the ground you get.  Even though with cars its a minuscule amount of distance from the ground

Post edited at 11:05 am on April 24, 2008 by Catalyst11

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Nikki


Starshine
Patron
Support Leader 		Reply
Hasn't this already been posted several times already?

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Byble


Enlightened One
Patron
Tech Support Leader 		Reply
Omd that is hard..

it may not.. as it is practically staying in the same place when they are at the same speed.

but it may.. omd.. i need to see it


ok.. hmmm i think that it could..?

Post edited at 11:04 am on April 24, 2008 by Byble

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( marshmellowman )


Enlightened One
Patron 		Reply
Quote: from Nikki at 7:02 pm on April 24, 2008
Hasn't this already been posted several times already?

I don't think I've seen it on LW myself, to be honest. I wanted to see the responses though. We get so many other reposts daily (such as sex, age, fav colour, etc) that it doesn't really matter.

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LaMotta


Executive 		Reply
Yes

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St Jimmy


Dairy Product Addict 		Reply
Probably just shoot off the end if it didn't have its engines on.

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Nikki


Starshine
Patron
Support Leader 		Reply
Quote: from marshmellowman at 7:04 pm on April 24, 2008
Quote: from Nikki at 7:02 pm on April 24, 2008
Hasn't this already been posted several times already?

I don't think I've seen it on LW myself, to be honest. I wanted to see the responses though. We get so many other reposts daily (such as sex, age, fav colour, etc) that it doesn't really matter.

Eh, I'm sure I've seen it a couple of times. Ah well, not important.

In answer to the question, yes.

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mynameisdan

Advisor 		Reply
Its airspeed will always be zero, it can not achieve enough lift to maintain lift off.  It may leave the ground temporarily, for a few moments, but it will likely return when it isn't able to keep the lift.
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tearsinheaven


Executive 		Reply
i don't think it will take off, it would stay relatively stationary i think.

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easy


Quality Control Engineer 		Reply
Quote: from MattJ at 11:01 am on April 24, 2008
Yes. THey proved it on Mythbusters, a show.
 QFT

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obvious child


Guru
Ad Free 		Reply
Depends how fast you can make the conveyor go. And your explanation of the problem isn't correct with the answer you're going to give.

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( marshmellowman )


Enlightened One
Patron 		Reply
Quote: from obvious child at 8:02 pm on April 24, 2008
Depends how fast you can make the conveyor go. And your explanation of the problem isn't correct with the answer you're going to give.

Care to go into more detail?

But the answer is yes.

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Moridin


Enlightened One
Ad Free 		Reply
I posted it earlier here. Since the airplane do not acquire forward momentum by friction against the ground, but by its motors, the answer is obviously yes.

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