Ok so theres a boeing 747 on a giant treadmill belt thats programmed to spin at the same speed as the wheels on the plane. If the plane reaches enough speed, can it take off?
I want to see who can figure this out, first one with the right answer gets "best answer." GO!
2007-06-28 16:20:50 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Nope still havnt gotten it, think hard.
2007-06-28 16:28:49 · update #1
Way to be full of yourself Firefox, your answers wrong too. Im asking if it will take off, as in move. Keep trying.
2007-06-28 16:44:41 · update #2
Youre still not getting it though. Its much simpler than youre thinking. Can the plane take off, let alone move? That should give it away.
2007-06-28 16:56:50 · update #3
Well, the correct answer was that its not the wheels pushing the jet to move, its the jet engines so the treadmill has no effect on the jet at all and it CAN TAKE OFF. Ill give it to firefox cuz he put up the most effort.
2007-06-28 17:03:45 · update #4
The first two answers are correct. The taking of an aircraft is not dependent on the wheelspeed.
Are you waiting for the WRONG answer?
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Interesting and fully confident, arent we? Take a look at your question, you have contradicted yourself. If the treadmill moves at the same speed as the tangential velocity of your Jumbo's wheels, there is no forward motion for the Jumbo. So the statement "If the plane reaches enough speed" is invalid and so you have no question that is worthy of physics. Jokes and Riddles, yes, not physics.
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Apologies, bozotexino, you have the credit. You had updated your answer when I was editing it, so I didnt notice it till I submitted. I acknowledge that you are the first one. And its not Foxfire, its Firefox!!!
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Thanks for the appreciation, thistimearound5765, and sorry for calling it a trick question. Now a question for you, say you are on a skate board and the treadmill is programmed to spin with the exact same speed as your skate's wheels. Now can you move forward if you get to push yourself against an outside, firm object?
2007-06-28 16:34:51 · answer #1 · answered by ? 6 · 0⤊ 0⤋
Of course the Jumbo can take off - it is powered by jets and it is irrelevant as to what the wheels are doing.
However, the problem lies in programing the treadmill belt to spin at the same rate as the plane wheels. As soon as the plane starts to move, the treadmill will accelerate to try and keep the wheels "stationary" in space. But the wheels ARE moving in space with the plane, so the treadmill will run away out of control until it and the wheels are rotating infinitely fast!
2007-06-29 01:02:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
No, air has to be moving fast enough past the plane that it can generate lift. It doesn't matter how fast the wheels spin.
2007-06-28 23:23:59 · answer #3 · answered by Gary 6 · 0⤊ 0⤋
no because it wont have the lift,to stay aloft but it will leave the ground untill the air speed drops enough then it will fall to earth .edit --if the wheels and the treadmill are going the same speed,the plane,isnot moving!!-------------HEY FOXFIRE,I ALREADY SAID THAT, see the edit?
2007-06-28 23:25:49 · answer #4 · answered by bozotexino 4 · 0⤊ 0⤋
Unless the wings are moving through air, or vice versa, the plane won't take off.
2007-06-28 23:24:23 · answer #5 · answered by gp4rts 7 · 0⤊ 0⤋
No, only the wheels are moving!
2007-06-30 14:33:19 · answer #6 · answered by johnandeileen2000 7 · 0⤊ 0⤋