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  1. Join Date
    Oct 2002
    Posts
    22,658
    #1
    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?

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  2. Join Date
    Oct 2004
    Posts
    1,526
    #2
    Access denied???







    :fly:


    Edit *posting without thinking* no :bleh:

    Edit2 maybe with gods help
    Last edited by GasJunkie; November 9th, 2006 at 04:07 PM. Reason: forgot the extra "c"

  3. Join Date
    Sep 2005
    Posts
    3,005
    #3
    Doc:

    We cannot proceed. Access Denied.

  4. Join Date
    Oct 2002
    Posts
    22,658
    #4
    Ok lang. Wala din ang sagot dun. hehehe.

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  5. Join Date
    Oct 2002
    Posts
    1,744
    #5
    Yes, the plane can take off... basta buhatin ito ni Darna

  6. Join Date
    Oct 2002
    Posts
    19,438
    #6
    it won't take off. kelangan ng wind drag to lift the airplane, walang kwenta kung mabilis ang gulong pero wala naman hangin.

  7. Join Date
    Jan 2005
    Posts
    4,866
    #7
    lilipad...

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






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

  8. Join Date
    Oct 2002
    Posts
    1,306
    #8
    I think it might.

  9. Join Date
    Aug 2004
    Posts
    22,710
    #9
    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.

    Ang pagbalik ng comeback...

  10. Join Date
    Jun 2005
    Posts
    4,313
    #10
    It wouldn't take off because we cannot proceed and access denied.

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