conveyor belt and plane answered at last ??

Doitall is just being a knob. He knows he's asking a flawed question but dare not admit it.
 
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So the wheels are going twice as fast as the plane they are connected to.
They are also going twice as fast as the conveyor. The speed diff between the plane and conveyor is 170 knots though. Doesn't really add up.

It adds up.

Lets say the belt is doing 10mph, the plane is doing 10 mph so the wheels are doing 20 mph.
 
Doitall is just being a knob. He knows he's asking a flawed question but dare not admit it.

Doitall has told you a dozen times it's an impossible question.

But that is irrelevant the plane cannot take off.

Just to make Joe happy it would in his version, but that is even more irrelevant.
 
So the wheels are going twice as fast as the plane they are connected to.
They are also going twice as fast as the conveyor. The speed diff between the plane and conveyor is 170 knots though. Doesn't really add up.

It adds up.

Lets say the belt is doing 10mph, the plane is doing 10 mph so the wheels are doing 20 mph.

With respect the wheels are connected to the plane. If the planes doing 10 mph so are the wheels. If the wheels were doing 20mph and the plane 10mph you'd have no wheels to land on when you got to where you were going cos they'd have got there before you.
 
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This thread has descended into nonsense that a gcse student could disprove with a couple of rudimentry physics equations.
 
With respect, Don't I love that statement.

If the plane is held in place on a conveyor doing 10mph then the wheels must be doing the same, if you now move the plane up the belt the plane is also doing 10mph so the wheels must be doing 20mph.

Put it this way if you mark a starting line on the belt, after one hour the line has moved 10 miles West and the plane has moved 10 miles East. A combined distance of 20miles, as the wheels were on the belt at all times they have travelled the equivalent of 20 miles in an hour
 
This thread has descended into nonsense that a gcse student could disprove with a couple of rudimentary physics equations.

No Hansthebear, the thread was nonsense from the start, it is/was never intended to be anything else.

I think :mrgreen:
 
Can't believe I've just posted on this thread.....sh*t I've done it again. :evil:

May as well go for a full house now Sooey :LOL:

If a conveyor is doing 10mph and a plane is doing 10 mile an hour in the opposite direction how long does it take the wheels to travel 10miles. :mrgreen:
 
Can't believe I've just posted on this thread.....sh*t I've done it again. :evil:

May as well go for a full house now Sooey :LOL:

If a conveyor is doing 10mph and a plane is doing 10 mile an hour in the opposite direction how long does it take the wheels to travel 10miles. :mrgreen:

Relative to their original ground positon, 1 hour. Relative to a point on the conveyor half an hour. Thing is in your explanation you quote plane speed relative to ground and wheel speed relative to conveyor.
 
The wheels (free-wheeling and not drive by the plane's engines) can do whatever speed they like. The plane will still take off, driven forward by the thrust from the engines.

:mrgreen: (whatever that means :rolleyes: )
 
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