DarrenGSi
Member
Registered: 11th Jul 05
Location: East Ayrshire Drives: Civic Jordan 381
User status: Offline
|
if the planes wheels were powering the plane, you would be correct svm
|
Brett
Premium Member
Registered: 16th Dec 02
Location: Manchester
User status: Offline
|
quote:
Originally posted by Jizinho Silva 10
quote:
Originally posted by loafofbrett
The question says the belt will be moving at the same speed as the "plane", not how much the engines are thrusting or how much the wheels are spinning.
i.e. If i was running ("moving") at 10mph and the conveyor was moving at 10mph then I wouldn't go anywhere.
It's like me saying, if i take longer strides on the running machine then i'll start to move up. No, because i wouldn't be going the same speed! :rolleye:
Your theory suggeststhere will be no air passing over the wings, hence no lift,the plane can go forwards at 3587857mph but it can't get lift then the answer is it won't take off.
correct
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by Ian
quote:
Originally posted by SVM 286
No Ian, the belt does not match wheel speed, it matches aircraft speed, that is the most important point.
It could surpass aircraft speed by some considerable margin if it wanted, it won't slow the plane down.
No, this is the most painful 'not seeing the wood for the trees' scenario I have ever been privvy to.
The whole point is that the belt travels at the SAME speed as the craft.
That is THE most basic of considerations.
If the plane travels at light speed, the belt is STILL travelling at the same speed.
The craft cannot possibly gain any ground and produce lift as the belt prevents it's progress.
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
my head is in my hands
|
John
Member
Registered: 30th Jun 03
User status: Offline
|
This is a perfect example of you contradicting yourself.
You say there the plane can move but in other posts you say it is stationary.
Which one is it?
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by Steve
OMG this is actually unbelievable
So by your account the belt moves at the same speedof the plane yeah? then the plane wouldnt move ACCORDING TO yOU, yeah?
Well if the question was changed to the belt moves 5 times faster than the plane, according to your theory the plane would go backwards, yeah?
[Edited on 24-05-2006 by Steve]
Yes, of course.
It could do nothing else Steve.
|
John
Member
Registered: 30th Jun 03
User status: Offline
|
Steve he must have known this would wind us up and he's actually just taking the piss out of us.
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
the belt has little effect on the progress of the plane svm if the wheels are freehweeling
wher have i heard that before 
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
yes i seriously think hes doing it on purpose now
|
DarrenGSi
Member
Registered: 11th Jul 05
Location: East Ayrshire Drives: Civic Jordan 381
User status: Offline
|
svm, think that the plane is going 100mph then the belt starts to move and gets to 100mph, the plane wont be slowed down, its just that the wheels will turn backward at 100mph
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by DarrenGSi
yes svm but as the planes wheels are free-turning, the can go at any speed and not affect the plane. the plane speed comes from the engine and pushes the air backwards which meanks it is not geographically stationary
For the love of God, PLEASE forget about the wheels for a minute.
The wheels DO NOT MATTER.
THE BODY OF THE PLANE and the BELT travel at the SAME speed.
We have already accepted that the belt runs in the opposite direction of the plane so the plane CANNOT move forward.
|
Hammer
Member
Registered: 11th Feb 04
User status: Offline
|
quote:
Originally posted by Steve
yes i seriously think hes doing it on purpose now
i just had this very same thought and i swear im shaking my head in disbelief.
a plane is travelling at light speed and yet is stationary, i am so upset im goin to burst into tears 
|
Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
|
the wheels are the vital thing in this arguemtn you fool, its the fact the wheels are freewheeling that the plane is not affected by the belt
|
Mase
Premium Member
Registered: 16th Sep 01
Location: Derbyshire
User status: Offline
|
i think people are forgetting momentum and the magnitude of the forces here...... the conveyor could be going at the speed of sound, the forces exerted by the plane would still be able to overcome these frictional forces from the conveyor.
Mase
|
Hammer
Member
Registered: 11th Feb 04
User status: Offline
|
quote:
Originally posted by SVM 286
quote:
Originally posted by DarrenGSi
yes svm but as the planes wheels are free-turning, the can go at any speed and not affect the plane. the plane speed comes from the engine and pushes the air backwards which meanks it is not geographically stationary
For the love of God, PLEASE forget about the wheels for a minute.
The wheels DO NOT MATTER.
THE BODY OF THE PLANE and the BELT travel at the SAME speed.
We have already accepted that the belt runs in the opposite direction of the plane so the plane CANNOT move forward.
this is becoming relentless now...please explain to me how it is in any way shape or form possible for a mass to be moving at all yet be stationary?
|
John
Member
Registered: 30th Jun 03
User status: Offline
|
How do these people manage not to do serious damage to themselves after they get out of bed in the morning?
|
dave17
Member
Registered: 3rd Sep 02
Location: Greater London
User status: Offline
|
My head hurts, but i still dont think itl take off.
You cannot call me an idiot for that.
I think the question can provoke two different opinions, thats why it is a widely known question, people will always have different theories
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by John
This is a perfect example of you contradicting yourself.
You say there the plane can move but in other posts you say it is stationary.
Which one is it?
For crying out loud John.
The craft is geographically stationary.
This what I stated previously.
It is fixed to any observer that isn't standing on the conveyor belt.
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by John
Steve he must have known this would wind us up and he's actually just taking the piss out of us.
I have precisely the same opinion of you John.
|
Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
|
quote:
Originally posted by SVM 286
The wheels DO NOT MATTER.
THE BODY OF THE PLANE and the BELT travel at the SAME speed.
We have already accepted that the belt runs in the opposite direction of the plane so the plane CANNOT move forward.
If the wheels do not matter, there is nothing to stop the plane moving?
|
John
Member
Registered: 30th Jun 03
User status: Offline
|
So its moving if you were standing on the conveyor belt but not outside it.
Thats it, you are taking the mick.
Well done.
You had me thinking you have the intelligence of a fruit fly for a minute there.
|
Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
|
quote:
Originally posted by SVM 286
quote:
Originally posted by DarrenGSi
yes svm but as the planes wheels are free-turning, the can go at any speed and not affect the plane. the plane speed comes from the engine and pushes the air backwards which meanks it is not geographically stationary
For the love of God, PLEASE forget about the wheels for a minute.
The wheels DO NOT MATTER.
THE BODY OF THE PLANE and the BELT travel at the SAME speed.
We have already accepted that the belt runs in the opposite direction of the plane so the plane CANNOT move forward.
If I run 20 meters ---->
and you run 20 meters <-----
have we moved? they're travelling at the same speed - in different directions. however it's not stopping the plane as its not counter acting the force of the engine.
When the plane is moving at 100 mph it's moving at 100 mph. The belt is whacking around at 100 mph the opposite way but its not stopping the plane since the wheels are just spinning underneathe it.
If the plane takes off and is doing 200 mph, the belt can still do 200 mph if it wants IS THIS NOW STOPPING THE PLANE?
Paul J
|
dave17
Member
Registered: 3rd Sep 02
Location: Greater London
User status: Offline
|
Oh shit, i change my mind, its just clicked.
Doh
Their right people, i get it now 
|
SVM 286
Member
Registered: 13th Feb 05
Location: pain
User status: Offline
|
quote:
Originally posted by Sxi04
quote:
Originally posted by SVM 286
quote:
Originally posted by DarrenGSi
yes svm but as the planes wheels are free-turning, the can go at any speed and not affect the plane. the plane speed comes from the engine and pushes the air backwards which meanks it is not geographically stationary
For the love of God, PLEASE forget about the wheels for a minute.
The wheels DO NOT MATTER.
THE BODY OF THE PLANE and the BELT travel at the SAME speed.
We have already accepted that the belt runs in the opposite direction of the plane so the plane CANNOT move forward.
this is becoming relentless now...please explain to me how it is in any way shape or form possible for a mass to be moving at all yet be stationary?
The same way you wouldn't make any progress from a standpoint if you were running on a treadmill Mr. 04.
|
DarrenGSi
Member
Registered: 11th Jul 05
Location: East Ayrshire Drives: Civic Jordan 381
User status: Offline
|
it will take off, the belt will not affect the plane at all because the wheels freewheel therefore when the plane accelerates, it will go in the direction its facing
|
