Will the Airplane Fly??????????

[OTEP]

From: http://www.4x4wire.com/forums/showfl...4&fpart=1&vc=1

A plane is standing on a runway that can move (like a giant conveyor
belt). This conveyor has a control system that tracks the plane's
speed and tunes the speed of the conveyor to be exactly the same (but
in the opposite direction) instantly.

Will the plane be able to take off?

[GasJunkie]

Access denied???







:fly:


Edit *posting without thinking* no :bleh:

Edit2 maybe with gods help

[russpogi]

Doc:

We cannot proceed. Access Denied.

[OTEP]

Ok lang. Wala din ang sagot dun. hehehe.

[mikey177]

Yes, the plane can take off... basta buhatin ito ni Darna

[boybi]

it won't take off. kelangan ng wind drag to lift the airplane, walang kwenta kung mabilis ang gulong pero wala naman hangin.

[nugundam93]

lilipad...

[SIZE="4"]lilipaaaaad...[/SIZE]






[SIZE="7"]TAKUUUURE!!!!!![/SIZE]

[Bry]

I think it might.

[niky]

Actually, it's a trick question.

If the conveyor tracks the plane's speed and moves in the opposite direction at that speed, then the plane will take off... it's just that the wheels will be moving at twice the speed of the plane and conveyor.

If you program the conveyor to match wheel speed, it's still not feasible... as wheel speed will always increase faster than conveyor speed. If you perfectly match the force of the engines, though... you might be able to keep the plane on the ground (engine power translated to treadmill power), but that's nearly impossible.

An airplane is driven by engines that push against the air, not the ground. You'd need to put a fan programmed to blow wind against the front of the plane at the same speed as the engines to keep it stationary... but then, if the fan is strong enough, the airplane will lift off anyway.





It just won't be moving forward.

[j_avonni]

It wouldn't take off because we cannot proceed and access denied.

[chain]

it won't take off. kelangan ng wind drag to lift the airplane, walang kwenta kung mabilis ang gulong pero wala naman hangin.

agree on this one.. kelangan nga ng uplift para madala pataas.

[badsekktor]

hmmm.... di ba ang airplane eh propelled through the air and not using the road? tingin ko lilipad pa rin since support lang naman ang function ng gulong... agree ako sa post ni niky... trick question to

[XTO]

From: http://www.4x4wire.com/forums/showfl...4&fpart=1&vc=1

A plane is standing on a runway that can move (like a giant conveyor
belt). This conveyor has a control system that tracks the plane's
speed and tunes the speed of the conveyor to be exactly the same (but
in the opposite direction) instantly.

Will the plane be able to take off?

No, because the conveyoy that serves as runway only equals the thrust

generated by the aircraft thus no enough air attacks the wing that can

produce lift.

[BoEinG_747]

it won't take off. kelangan ng wind drag to lift the airplane, walang kwenta kung mabilis ang gulong pero wala naman hangin.

+1
An airplane flies because its wings create lift, the upward force on the plane, as they interact with the flow of air around them. The wings alter the direction of the flow of air as it passes. The exact shape of the surface of a wing is critical to its ability to generate lift. The speed of the airflow and the angle at which the wing meets the oncoming airstream also contribute to the amount of lift generated.

[Alpha_One]

+1
An airplane flies because its wings create lift, the upward force on the plane, as they interact with the flow of air around them. The wings alter the direction of the flow of air as it passes. The exact shape of the surface of a wing is critical to its ability to generate lift. The speed of the airflow and the angle at which the wing meets the oncoming airstream also contribute to the amount of lift generated.

And here's where the trick to the problem comes in. Take note that in the problem it's the runway that's moving the opposite direction, not the wind.

Treadmill guys, hindi wind tunnel.

[mbeige]

From: http://www.4x4wire.com/forums/showfl...4&fpart=1&vc=1

A plane is standing on a runway that can move (like a giant conveyor
belt). This conveyor has a control system that tracks the plane's
speed and tunes the speed of the conveyor to be exactly the same (but
in the opposite direction) instantly.

Will the plane be able to take off?

The answer is no. Bernoulli's principle is not in effect. Hence, no lift.

[nerbyoso]

yes! a big yes! lalo na kung VTOL (vertical take-off and landing) ang aircraft like the harrier hahaha!

levity aside, i agree with niky.

[ozcity]

plane's speed and tunes the speed of the conveyor to be exactly the same

Will the plane be able to take off?

NO!...simply because the airplane is stationary
no thrust=no drag=no lift

OT:

which place will the airplane needs more longer runway during takeoff..in Baguio City or in Manila? heheeheheh

[KoKoNAT]

At first, the obvious answer is: 'No, the plane won't fly.' But it's incorrect, the plane WILL fly. The simplest answer is because the plane's engines work on a different medium (air). Regardless of how fast the conveyor turns, the plane's engines would still be able to pull air into it which makes the air move across its wings which in turn will cause lift and let the plane take off. The only effect the conveyor belt will be is to cause the plane's wheels to spin a helluva lot fast.

[KoKoNAT]

plane's speed and tunes the speed of the conveyor to be exactly the same

Will the plane be able to take off?

NO!...simply because the airplane is stationary
no thrust=no drag=no lift

OT:

which place will the airplane needs more longer runway during takeoff..in Baguio City or in Manila? heheeheheh

Baguio City. Because the air's thinner up there. The plane will need a longer runway to be able to generate the lift necessary to fly.