Plane

[Deleted member 35927]

Oh my goodness

Youre clearly using a baseless interpretation of what you think is going on. As stated the conveyor is acting against the wheels in the opposite direction. Which means the conveyor is going forward in the direction of take off.

 

[KenL]

It’s an irrelevant question. Being a Boeing, it's bound to crash anyway.

Terrible post, shame on you.

 

[Deleted member 36735]

Youre clearly using a baseless interpretation of what you think is going on. As stated the conveyor is acting against the wheels in the opposite direction. Which means the conveyor is going forward in the direction of take off.

OH NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO



OK, well at least that explains what you've posted the past few days, and confirms what I thought that you don't actually understand the wording of the puzzle.

Maybe you missed the screenshot I put this morning about the definition of the word "counteracts". It doesn't mean that the conveyor goes in the same direction as the plane, it means that it neutralises, offsets etc the effect that the motion of the wheels has.

When you realise that virtually everyone else is talking about the conveyor/treadmill going in the backwards direction, hopefully all our points will make sense.

 

[Deleted member 35927]

OH NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO



OK, well at least that explains what you've posted the past few days, and confirms what I thought that you don't actually understand the wording of the puzzle.

Maybe you missed the screenshot I put this morning about the definition of the word "counteracts". It doesn't mean that the conveyor goes in the same direction as the plane, it means that it neutralises, offsets etc the effect that the motion of the wheels has.

When you realise that virtually everyone else is talking about the conveyor/treadmill going in the backwards direction, hopefully all our points will make sense.

Counteracting the rotation can just as easily mean trying to reverse the direction.

 

[Deleted member 35927]

So if we power up our plane to say 1000 mph and our conveyor matches it and we have physics defying plane sat stationary. What happens if I then pull a lever that drops the conveyor away.
Am I meant to believe our plane just drops down lands on the conveyor and stays stationary

 

[Deleted member 36735]

Counteracting the rotation can just as easily mean trying to reverse the direction.

Counteract cannot mean reverse the direction.
It means to provide an opposing force that neutralises the action.
The conveyor is moving backwards so that the forward movement of the wheels (when the plane is pushed forward by the engines) is counteracted.

 

[Arthur Wedge]

 

[Deleted member 35927]

Counteract cannot mean reverse the direction.
It means to provide an opposing force that neutralises the action.
The conveyor is moving backwards so that the forward movement of the wheels (when the plane is pushed forward by the engines) is counteracted.

View attachment 56924

Are suggesting that the forward motion of a conveyor won't counteract the rotation of the wheels ? No need to reverse , just counteract the forward rotation.

 

[SteveW86]

View attachment 56925

I know repeating things that have been posted is the trend of this thread, but that was literally post 3

 

[Arthur Wedge]

I know repeating things that have been posted is the trend of this thread, but that was literally post 3

It’s very apt for the thread

Its a shame that some past posters are missing it - can just imagine the Pedantic kiwi being right in the middle of it

 

[Deleted member 35927]

It’s very apt for the thread

Its a shame that some past posters are missing it - can just imagine the Pedantic kiwi being right in the middle of it

Who was that!!!!!!!!!!!!!!

 

[Deleted member 36735]

It’s very apt for the thread

Its a shame that some past posters are missing it - can just imagine the Pedantic kiwi being right in the middle of it

Well apart from a couple of posts on Sunday, nothing has had to be deleted.

So whilst there is disagreement and some are obviously but proportionally temporarily frustrated with each other, the worst insults have generally been a vicious war of laughing emojis....a bit like getting mauled by a pack of labrador puppies, I'm sure we can all deal with those .
It's perfectly possible to take the actual debating seriously whilst also remembering that the subject of the debate is somewhat tongue in cheek nonsense.

Certain other very dogmatic and pedantic posters who are usually at the centre of long running arguments on here could learn a thing or two...

 

[Swango1980]

Counteract cannot mean reverse the direction.
It means to provide an opposing force that neutralises the action.
The conveyor is moving backwards so that the forward movement of the wheels (when the plane is pushed forward by the engines) is counteracted.

View attachment 56924

The wheels are initially stationary. Something causes them to start moving, which is the forward movement of the plane.

If a wheel starts moving, what does it mean to counteract this rotation? You have literally given us the definition. To cancel out. To stop it happening.

So, how can a treadmill do this? It must move in the same direction and same speed forwards as the plane. Thus the wheels stop moving and their rotation is cancelled out.

Whereas moving the treadmill in the opposite direction the plane is / wants to move does nothing to counteract wheel rotation, it actually does the complete opposite. The faster the treadmill moves backwards, the faster the wheels turn

 

[sunshine]

Not sure why you haven't asked Crow about this? The reason Crow's explanation fits is because:

• As the plane moves forward, the wheels will start moving. They will have a speed. So, lets say at a point in time the plane is thrust forward to a speed of 50 mph, the wheels will want to be moving at 50mph (on a stationary runway)
• The wheels touch the ground, and the surface of the wheel moves in the opposite direction to the planes movement
• The treadmill has been programmed to counteract this. Not the direction of the plane, but the direction of the wheel
• So, the treadmill (at this point in time) moves 50mph in the direction of the plane to perfectly counteract their rotation. Therefore, the wheels don't move at all, as the conveyer belt is travelling the same speed as the plane and opposite direction to the wheels, where they are in contact.

The OP does not actually say the wheels and conveyor belt are actually running at the same speed as an end result. Your patronising posting of the definition of the word counteracting actually supports this. The treadmill opposes, neutralises or mitigates the movement of the wheels, hence the speed of the wheels is actually neutralised to zero

You are so confused

 

[sunshine]

Well since the original question says 'imagine a plane'... it kinda means its an imaginary plane

An imaginary plane can do whatever the chuff you imagine it can do. It can have an imaginary pilot but he may be a harbour pilot and as much as he tries he knows sod all about flying planes. It can even have passive aggressive wheels that don't behave as regular wheels would

The imaginary plane can remain still and the (also imaginary) conveyor belt can take off instead and do loops

Passive aggressive wheels

Fair play. That really made me giggle

 

[Deleted member 36735]

So, how can a treadmill do this? It must move in the same direction and same speed forwards as the plane. Thus the wheels stop moving and their rotation is cancelled out.

Whereas moving the treadmill in the opposite direction the plane is / wants to move does nothing to counteract wheel rotation, it actually does the complete opposite. The faster the treadmill moves backwards, the faster the wheels turn

The treadmill moving in the backwards direction exactly "counteracts" the wheels as per the definition. It neutralises the effect that the forward rotation of the wheels has, therefore stopping the plane from moving forward.

Anyway, whilst this has been fun, taxing on the brain and I've learned some of Newton's laws, I was supposed to be job-hunting in the real world today but instead I've wasted my time on this nonsense.
I can't add any more, so unless I can quickly invent a treadmill that can help a 747 take off in confined spaces, my mortgage isn't getting paid unless I pull my finger out...

Happy debating

 

[Deleted member 35927]

The treadmill moving in the backwards direction exactly "counteracts" the wheels as per the definition. It neutralises the effect that the forward rotation of the wheels has, therefore stopping the plane from moving forward.

Anyway, whilst this has been fun, taxing on the brain and I've learned some of Newton's laws, I was supposed to be job-hunting in the real world today but instead I've wasted my time on this nonsense.
I can't add any more, so unless I can quickly invent a treadmill that can help a 747 take off in confined spaces, my mortgage isn't getting paid unless I pull my finger out...

Happy debating

You should read the definition of counteracts, someone posted it earlier

 

[Voyager EMH]

The treadmill moving in the backwards direction exactly "counteracts" the wheels as per the definition. It neutralises the effect that the forward rotation of the wheels has, therefore stopping the plane from moving forward.

Anyway, whilst this has been fun, taxing on the brain and I've learned some of Newton's laws, I was supposed to be job-hunting in the real world today but instead I've wasted my time on this nonsense.
I can't add any more, so unless I can quickly invent a treadmill that can help a 747 take off in confined spaces, my mortgage isn't getting paid unless I pull my finger out...

Happy debating

"Counteracts": The wording of the OP causes, or feeds, or adds to, the misconception of how a plane behaves on a conveyor.

The conveyor and the bottom of the wheels are both moving backwards. The top of the wheels are moving in a forwards direction.
But the wheels are not powered. They are powerless. All they can do is respond passively.
The wheels can not be counteracted, because they are not acting. They have no power to act so there is no power applied to the wheels to cancel out their non-existent act.

If they do not turn, the plane moves backwards at the speed of the conveyor. Being conveyed by the conveyor.
If they do turn, then they will match the speed of the conveyor (they can not do otherwise, they are powerless) and the plane will either remain stationary or move forwards.
The jet-power needed to set a plane barely moving on a normal runway is the same power that would keep it stationary on a conveyor.
More power than this and the plane will move forwards on the conveyor.
The conveyor going faster and faster causes the wheels to turn faster and faster. This does not halt or hinder the plane's progress along the conveyor.

 

[Voyager EMH]

How about inventing a giant catapult?

Or bring Thunderbird 2 into the real world. What a great take off!

 

[RichA]

The wheels are initially stationary. Something causes them to start moving, which is the forward movement of the plane.

If a wheel starts moving, what does it mean to counteract this rotation? You have literally given us the definition. To cancel out. To stop it happening.

So, how can a treadmill do this? It must move in the same direction and same speed forwards as the plane. Thus the wheels stop moving and their rotation is cancelled out.

Whereas moving the treadmill in the opposite direction the plane is / wants to move does nothing to counteract wheel rotation, it actually does the complete opposite. The faster the treadmill moves backwards, the faster the wheels turn

So now you're saying that the conveyor belt / treadmill goes forwards?
You are always very certain that you are correct, even when contradicting yourself.