Plane

[Deleted member 36735]

The plane moves forward and takes off.

You've just completely changed the scenario

The original post says that the conveyor belt exactly counteracts the forward movement of the wheels, so obviously it's not moving is it.

 

[Deleted member 35927]

You've just completely changed the scenario

The original post says that the conveyor belt exactly counteracts the forward movement of the wheels, so obviously it's not moving is it.

I've not changed anything, as stated in the op the plane takes off.

 

[Swango1980]

Here is another little teaser.

After posting a decent little brain teaser on a golf forum, how long does it take for people to start showing off that they have the correct answer, whilst trying to mock those that think the opposite?

 

[AmandaJR]

Here is another little teaser.

After posting a decent little brain teaser on a golf forum, how long does it take for people to start showing off that they have the correct answer, whilst trying to mock those that think the opposite?

Clearly not very long. It's better reading than the Laughter thread at the moment. I literally have no clue who is right or wrong - maybe I need to pick a side and get involved

 

[Deleted member 36735]

I've not changed anything, as stated in the op the plane takes off.

What planet are you on?
The OP doesn't state that at all, it asks if the plane will take off.

 

[Deleted member 35927]

What planet are you on?
The OP doesn't state that at all, it asks if the plane will take off.

Jeez , the answer to the question in the op is yes the plane will take off.

 

[Swango1980]

My instictive answer was it wouldn't take off because plane would be stationary relative to air.

But, of course, planes to not generate their forward momentum using the wheels, it is the thrust of the engines. So, it doesn't matter what the treadmill and wheels are doing. The plane will still be thrust forward and take off

Think about it the other way. A plane lands at 100mph (or whatever speed) directly on a treadmill going that speed in opposite direction. The plane won't come to an instant stop relative to air, and all on board killed as they are fired into the seat in front of them

 

[Deleted member 36735]

My instictive answer was it wouldn't take off because plane would be stationary relative to air.
So, it doesn't matter what the treadmill and wheels are doing. The plane will still be thrust forward and take off

The scenario specifically states that the treadmill negates the actions of the wheels, hence implying that the plane does not move forward.

 

[Deleted member 35927]

My instictive answer was it wouldn't take off because plane would be stationary relative to air.

But, of course, planes to not generate their forward momentum using the wheels, it is the thrust of the engines. So, it doesn't matter what the treadmill and wheels are doing. The plane will still be thrust forward and take off

Think about it the other way. A plane lands at 100mph (or whatever speed) directly on a treadmill going that speed in opposite direction. The plane won't come to an instant stop relative to air, and all on board killed as they are fired into the seat in front of them

Nicely put.

 

[Deleted member 35927]

The scenario specifically states that the treadmill negates the actions of the wheels, hence implying that the plane does not move forward.

But youre falling into the trap that the wheels provide any sort of drive, they don't. The jet engines do and thats what causes it to go forward.

 

[Deleted member 36735]

But youre falling into the trap that the wheels provide any sort of drive, they don't. The jet engines do and thats what causes it to go forward.

No I'm not, who would think the wheel provide any drive, that's ridiculous.

It's clear that you don't actually understand what you posted. The plane doesn't move forward as the conveyor negates the rolling of the wheels, that's the whole point, hence it is stationary.

 

[Swango1980]

No I'm not, who would think the wheel provide any drive, that's ridiculous.

It's clear that you don't actually understand what you posted. The plane doesn't move forward as the conveyor negates the rolling of the wheels, that's the whole point, hence it is ststationary.

Another way of looking at it

You are on roller blades holding a large kite flying down road due to wind. If you were on a conveyor belt running in opposite direction, you'd still be thrust forward at same speed. You wouldn't be stationary

 

[Deleted member 35927]

No I'm not, who would think the wheel provide any drive, that's ridiculous.

It's clear that you don't actually understand what you posted. The plane doesn't move forward as the conveyor negates the rolling of the wheels, that's the whole point, hence it is stationary.

Of course I do, why do you think the plane won't move , planes don't need wheels to move.

 

[Fade and Die]

But the plane is stationary in relation to the surrounding air so how would there be any lift generated….

 

[SteveW86]

I’m out now

 

[Deleted member 35927]

But the plane is stationary in relation to the surrounding air so how would there be any lift generated….

View attachment 56876

Why is it stationary? It's moving forward as a consequence of the jet engines.

 

[Neilds]

Why is it stationary?

Because it is not moving. It is the same as running on a treadmill, you don’t move. Why would the plane be any different?

Also, engine provide thrust, this acts against drag and causes the aircraft to move forward. Engines do not provide lift, this is produced by the airflow over the wings, as shown above.

 

[Deleted member 36735]

Another way of looking at it

You are on roller blades holding a large kite flying down road due to wind. If you were on a conveyor belt running in opposite direction, you'd still be thrust forward at same speed. You wouldn't be stationary

If this scenario assumes that same as the original post, then of course you'd be stationary in relation to the ground, but of course moving at speed in relation to the conveyor belt.

Exactly the same as running on a treadmill, that's the WHOLE POINT of the original post.

 

[Neilds]

If this scenario assumes that same as the original post, then of course you'd be stationary in relation to the ground, but of course moving at speed in relation to the conveyor belt.

Exactly the same as running on a treadmill, that's the WHOLE POINT of the original post.

And you don’t feel a breeze on a treadmill

 

[Deleted member 36735]

Of course I do, why do you think the plane won't move , planes don't need wheels to move.

The WHOLE POINT of the question is that the plane isn't moving due to the conveyor belt
That is what you don't understand.