sss said:
Okay, how many times do I have to say this again:
a wheel does not equal a frictionless surface!!!
A wheel catches onto the surface at one point at all times, and the frictionless surface never catches!
Please read a physics textbook for further refrence.
eVITAERC said:
But that's impossible. For the system to remain in equilibrium, the forces applied must be equal and the force supplied via the travellator is transmitted via the bearings which are (guessing) 95% efficient.
For your model to work, the travellator would have to be moving at 20 times the speed stated to supply an equal force.
Hi eVITAERC,
Relax, I wasn't commenting on the content of the thread as much as poking fun. I am convinced that you are incorrect after considering many points of view, but that's okay.
Lostcause,
Why for you burn the roller skaters back? He's not a plane. Poor guy was just doing his thing before you came along. 😀
Every point of view has been explored. The arguments are amusing so, play on!
-Chris
Relax, I wasn't commenting on the content of the thread as much as poking fun. I am convinced that you are incorrect after considering many points of view, but that's okay.
Lostcause,
Why for you burn the roller skaters back? He's not a plane. Poor guy was just doing his thing before you came along. 😀
Every point of view has been explored. The arguments are amusing so, play on!
-Chris
Ok, we agree that if the plane moves forward 10MPH and the belt moves backward 10MPH then the wheels move at 20MPH. But, think about the original question, the speed of the belt is not related to the forward speed of the plane but rather the speed of it's wheels. The belt has no external power in and of itself and has no internal friction so it responds immediately and exactly to the wheel movement not the plane movement.
AudioFreak said:
But in the process of moving at 10mph it has increased the speed of the wheel, The conveyor then increases its speed to match the wheel and again acts upon the wheel....it goes on....
What, strapping jetpaks to unsuspecting rollerskating youths on travelators?anatech said:
You old lot are sadistic aren't ya 😀
Lostcause said:
Hehe, which is why I said the conveyer must be an enghineering marvel of this century. Deep control theory is needed in this case, I suspect 🙂
Lostcause said:
...until he gets reprimanded by the captain for wearing rollerblades onto the plane. DENIED! 😀
quickshift said:
sorry if anyone else already pointed this out (I don't want to read 6 pages worth before replying, which is part of the problem of this, as SSS's realisation was the one I came to about 10 pages ago 😉),, but they were pulling the paper in the wrong direction, they should have been pulling it in the same direction as the forward movement as the fan if they were trying to simulate said conveyor 😉 though I guess the important thing is that the fan didn't speed up when they pulled it out 🙂
Tony.
anatech said:I can see that some human minds are still infected. They need to be scanned and cleaned.
If it's too bad, a wipe and reload will be needed.
My wife left in a plane today, that confirms that airplane wheels are able to turn.
-Chris
LOL
I hope she didn't leave because you were spending too much time on this problem 😉
Tony.
Lostcause said:
At no time is the belt less than the speed of the wheel. There is never any action by the belt it is simply geared directly to the wheel (not to the jet engine) and the wheel coupled to the plane.
Now if you were able to support the weight of the plane such that the wheels made contact with the belt but had no significant weight bearing down on them then I agree that they would spin progressively faster as would the belt but the plane would continue to move forward and take off as it is no longer coupled thru the wheels to the ground.
Lostcause said:
I agree that this question has to be considered theoretical as certain parts of the original question would not hold true in reality and therefore in real life the plane would be in the air 300 or so posts ago.
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