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Author Plane on a conveyor belt put to the test
Steve
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Registered: 30th Mar 02
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2nd Feb 08 at 20:52   View Garage View User's Profile U2U Member Reply With Quote
i think people get too fixed on teh fact that they are right, you need to step back and think why you are wrong, thats the only way you will get it
ainsley_brader
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2nd Feb 08 at 20:52   View User's Profile U2U Member Reply With Quote
Oh and you didn't answer my question!
Steve
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2nd Feb 08 at 20:52   View Garage View User's Profile U2U Member Reply With Quote
which was ?
ainsley_brader
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2nd Feb 08 at 20:53   View User's Profile U2U Member Reply With Quote
Does the plane take off in my scenario?
Steve
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2nd Feb 08 at 20:53   View Garage View User's Profile U2U Member Reply With Quote
the answer to your question is if a sensor increased the conveyor belt to a point where the plane wouldnt move forward then yes it wouldnt go anywhere but thats not the question
ainsley_brader
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2nd Feb 08 at 20:54   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
the answer to your question is if a sensor increased the conveyor belt to a point where the plane wouldnt move forward then yes it wouldnt go anywhere but thats not the question


It was my question. Thankyou i'm done now!
Steve
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2nd Feb 08 at 20:55   View Garage View User's Profile U2U Member Reply With Quote
but you do realise that to reach a point where the plane wouldnt move forward the belt would have to be spinning many many times more faster then the equivalent forward speed of the plane?
Cosmo
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2nd Feb 08 at 20:55   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by ainsley_brader
quote:
Originally posted by Steve
the answer to your question is if a sensor increased the conveyor belt to a point where the plane wouldnt move forward then yes it wouldnt go anywhere but thats not the question


It was my question. Thankyou i'm done now!


You are still wrong though
Steve
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2nd Feb 08 at 20:56   View Garage View User's Profile U2U Member Reply With Quote
i think the fact he used the veyron example means he didnt get it
Cosmo
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2nd Feb 08 at 20:57   View User's Profile U2U Member Reply With Quote
Oh, a Veyron, didnt see that post.

PLane wouldnt take off in that case.
ainsley_brader
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2nd Feb 08 at 20:59   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
i think the fact he used the veyron example means he didnt get it


eh it could have been any car?

theres two questions here.

One matches the forward momentum and the plane wont take off as you said!

The other doesnt uses extra engine power to exceed the forward momentum (because its air based not wheel based) and so does take off as you said!
Steve
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2nd Feb 08 at 21:00   View Garage View User's Profile U2U Member Reply With Quote
ok, in this question

"If a plane is on a conveyor belt and the conveyor belt spins in the opposite direction the same speed as the plane, can it take off"

would you say the answer to that is yes?
ainsley_brader
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2nd Feb 08 at 21:00   View User's Profile U2U Member Reply With Quote
Its all about how you read the question. I understand why you draw the conclusion the plane will take off but i'm not as blind as you as to also see other peoples argument as to why the plane wouldn't take off (if momentum was matched)
Steve
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2nd Feb 08 at 21:02   View Garage View User's Profile U2U Member Reply With Quote
we are talking about the speed the conveyor belt is spinning here, if the plane is moving at 10mph then conveyor belt spinning at 10mph, then the plane gets to 40mph and the belt is spinning at 40mph, the belt will have little effect of the plane forward progress
ainsley_brader
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2nd Feb 08 at 21:03   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
ok, in this question

"If a plane is on a conveyor belt and the conveyor belt spins in the opposite direction the same speed as the plane, can it take off"

would you say the answer to that is yes?


The question is ambiguous and you well know it!

If the forward momentum of the plane was set at 40mph and the conveyer belt was set at 40mph therefore they were both doing a consistent 40mph, no extra engine power etc and so the plane is stationary on top of the belt then there would be no lift!
Steve
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2nd Feb 08 at 21:04   View Garage View User's Profile U2U Member Reply With Quote
yes it would you still dont get it

did you not watch the vids?
Steve
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2nd Feb 08 at 21:06   View Garage View User's Profile U2U Member Reply With Quote
with your theory, the planes forward speed would be say 40mph, the belt would have to be spinning the other way at something like 1000mph (complete guess) to have much impact on the forward momentum
Steve
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2nd Feb 08 at 21:08   View Garage View User's Profile U2U Member Reply With Quote
think about this, you're on a treadmill with rollerskates, your mate is behind you holding you there, can he push you fowards? yes. Can he push you forwards even if the belt speeds up to match the speed you're going forwards at? yes.
ainsley_brader
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2nd Feb 08 at 21:10   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
think about this, you're on a treadmill with rollerskates, your mate is behind you holding you there, can he push you fowards? yes. Can he push you forwards even if the belt speeds up to match the speed you're going forwards at? yes.


Yes i fully get why the plane moves forward!
Steve
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2nd Feb 08 at 21:13   View Garage View User's Profile U2U Member Reply With Quote
is this a new development?
ainsley_brader
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2nd Feb 08 at 21:14   View User's Profile U2U Member Reply With Quote
um no
Danny P
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2nd Feb 08 at 21:20   View User's Profile U2U Member Reply With Quote
Some fucker should really do a full scale effort of this just to prove it once and for all as we dont have to go through it all once a month on here
Steve
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2nd Feb 08 at 21:23   View Garage View User's Profile U2U Member Reply With Quote
they did, watch the vids lol
Cosmo
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2nd Feb 08 at 21:23   View User's Profile U2U Member Reply With Quote
You'd still get people saying it cant happen tbh





It wont take off
Robin
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2nd Feb 08 at 21:24   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
they did, watch the vids lol


Since when has a long bit of cloth been a conveyor belt?

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