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#251
11-23-2005, 04:10 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
thats the whole point of the conveyer belt....it stops the plane from going anywhere....you obviously don't move relative to the atmosphere when youre running on a treadmill, right? thats the whole point of a treadmill, so you can run WITHOUT MOVING. [/ QUOTE ] Planes don't have feet. They have WHEELS. 
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#252
11-23-2005, 04:10 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
[ QUOTE ] [ QUOTE ] [ QUOTE ] The thing is, as stated in the original problem, the runway speeds up to [/ QUOTE ] Wait, you understand this point and still think it can't take off? Holy hell. Edited for clarity [/ QUOTE ] OK I will spell it out. Wheels moving in X with tangential velocity V. Runway moving in X with -V. Plane is stationary to observor (the atmosphere). Engines apply force in +X which translates to increased wheel speed. Plane is moving in X with velocity (V + Vfromengine) Runway speeds up to move in X with velocity -(V + Vfromengine) Plane is still stationary to observor(the atmosphere). Plane does not take off. [/ QUOTE ] The bold part is incorrect. [/ QUOTE ] So if a plane is on the ground and I turn on the engines, the wheel speed wont increase?
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#254
11-23-2005, 04:12 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
[ QUOTE ] thats the whole point of a treadmill, so you can run WITHOUT MOVING. [/ QUOTE ] Now throw rollerskates on and use the handles to pull yourself forward. [/ QUOTE ] And, as stated in the original problem, the treadmill will speed up to compensate. Thus you dont move.
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#255
11-23-2005, 04:13 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
[ QUOTE ] thats the whole point of a treadmill, so you can run WITHOUT MOVING. [/ QUOTE ] Now throw rollerskates on and use the handles to pull yourself forward. [/ QUOTE ] best/simplest explanation yet. 
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#256
11-23-2005, 04:13 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
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I have to wait for Ray's permission to unleash the full fury on you guys. [/ QUOTE ] Go for it - the crowd is getting restless. I am already working on it myself, but I have a feeling yours will be better.
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#257
11-23-2005, 04:13 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
Patrick, I worked hard on a nice diagram to explain to these people what happens with the plane. the least you can do is unleash some fury. [/ QUOTE ] Patrick thinks the runway speed is FIXED. IF it is fixed, of course the plane can take off.
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#258
11-23-2005, 04:14 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
[ QUOTE ] I have to wait for Ray's permission to unleash the full fury on you guys. [/ QUOTE ] Go for it - the crowd is getting restless. I am already working on it myself, but I have a feeling yours will be better. [/ QUOTE ] These explanations will be in the form of an easy to follow picture right? Please?
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#259
11-23-2005, 04:14 PM
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Re: Physics graduate from Daryn\'s alma mater\'s answer
[ QUOTE ]
[ QUOTE ] [ QUOTE ] thats the whole point of a treadmill, so you can run WITHOUT MOVING. [/ QUOTE ] Now throw rollerskates on and use the handles to pull yourself forward. [/ QUOTE ] And, as stated in the original problem, the treadmill will speed up to compensate. Thus you dont move. [/ QUOTE ] Wow. I hope you are only a freshman and still have time to switch to environmental engineering or something.
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#260
11-23-2005, 04:15 PM
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Re: think about this...
[ QUOTE ]
[ QUOTE ] [ QUOTE ] I have an urge to do more MS Paint. [/ QUOTE ] Fire away, Cap'n. [/ QUOTE ] no inspiration. I need a new topic. [/ QUOTE ] your topic is: the Crimson Challenge
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