I see exactly what your saying. But I don’t see how that could be used as an argument for the plane not taking off. Are you just arguing the concept of the speed of any object on a treadmill? That would make sense.
There is no NO crew. Its called moron crew. You can talk in circles on anything you want, just because you think it makes sense to your pea brain doesn’t mean you can “interpret” it differently and be “right”.
I am not going to read the last 5 pages. The plane took off. Those of us who were right, have been proven right, and those of you who were proven wrong should end yourself if you are still arguing this.
THE ONLY RELEVANT ARGUMENT I SEE IS THE
plane is going 25 mph forward… treadmill goes 25 mph in reverse
SOOO wheel speed must = 50mph… correct???
now wheel speed doesnt match that of the treadmill (if the plane is in fact moving forward, which it needs to do in order to take off)
HOWEVER and a BIG HOWEVER only idiots rephrasing the original MYTH changed the planes speed to wheel speed… and therefore is not the Tested Myth
Exactly.
What determines the speed of any object on a treadmill? Its actual movement forward or the speed of the object in relation to the surface of the treadmill?
Both are valid perceptions. Just like the “Jim runs 8 MPH for an hour, but cant reach the wall in front of him” question from Lafengas.
The answer to that question will determine whether you say YES or NO to the plane on a treadmill question.
The hard part is trying to persuade everyone to view it the same way!
baldy.
you’re wrong.
the question says wheel speed.
wheel speed is relative to the treadmill and independent of the GLOBAL relationship of plane speed to ground speed.
why is the plane on the treadmill in the first place…
Its not like the plane has an eating disorder and has to lose weight like my fat roommate.
What question do you see that mentions wheel speed?
Im not arguing right or wrong Newman I’m just bringing the perception of speed in relation to the treadmill out for people to question.
Wheel speed is relative to the treadmill speed. 1 to 1. if the actual plane was forced to move forward through the air, you have thrown off the equal speed relationship and the question has been broken. Right?
I can run 8 MPH on a treadmill, and I am going ZERO MPH forward.
I can roll a plane on a treadmill at 25 MPH and it is also going ZERO MPH forward.
I can turn the engines on, and turn em up to go 50 MPH forward, but now the wheels are going 75 MPH.
What do you determine speed by for the question? ACTUAL movement forward, or speed relative to the object vs. the treadmill surface?
Is there actually a correct perception? Because that is the key.
nope.
Speed doesn’t matter. You could have the plane moving at 150mph forward, thus on solid surface the wheels would be moving at 150mph. forward. If you then crank up the treadmill to say 500mph, the wheels will just be moving at 500mph, and the plane will still be moving at 150mph forward. They are free rotating mass. Wheel speed and the speed of the conveyor have nothing to do with the true equation.
I’m following your logic as well. That’s an entirely different perception on the speed.
Sadly, speed does matter, as that it is part of the question. Equal speed of the treadmill to the plane. But, what part of the plane? You just summed it up. Two different parts working with different factors on perceptual speed.
But, taking the plane as an object as a whole and not splitting it into wheels and body, the perception is different.
EDIT:
Wait, I read yours again. Your math doesnt add up. If a plane is moving 150 MPH forward in relation to actual forward movement, and the treadmill is going 500 MPH backwards… the wheels are going 750 MPH, and not equal. You add the two together. They may not have the same forces, and don’t have to be equal but they do constitute the final speed of the wheels on the ground. All three of your numbers are not equal, so you broke the question by not having equal speeds.
What does it seriously fucking matter what the ground speed is of the air craft.
The plane is dependent on air speed… enough air speed to make it lift off the ground.
If it requires 75knots then so be it
plane = 50knots
headwind = 27 knots
plane flies
plane = 24 knots
head wind = 36 knots
ground speed in respect to newman driving past the plane = 86 knots
semen coming out of the end of my penis = 36 knots
God seriously you people need to give this a rest
note: I can shoot it really far
I just realized that mythbusters used this question:
“If a plane is traveling at takeoff speed on a conveyor belt, and the belt is matching that speed in the opposite direction, can the plane take off?”
Well of course it will take off then!
The plane is actually moving forward and who cares about the speed compared to the treadmill! They changed the perception so there is no indecisive one or the other. Screw the wheels, they’re not important anymore. LOL
That myth is easy. Plane speed is not affected by the free spinning wheels. /end. Easy myth.
It is not perception, it is having a semi-plausible situation (belt matches plane speed) and an impossible situation (belt matches wheel speed). In the later, it is an exercise in futility as it would just go off in to infinitum. The plane would still take off, however, the question is not possible, because of that reason. The belt would never be able to “match” wheel speed and time would explode. Answer the question requires you to suspend certain realities (ie, why the fuck is there a plane on a treadmill in the first place). Another one is that if you are choosing the second wording, you have to assume, that belt matches wheel. The reality is that the answer is simple, and it is only simple people who can’t understand it.
baldy. I know what you are trying to say, but what you have to realize is that this hypothetical treadmill is able to obtain instantaneous acceleration.
This is a hypothetical situation and the fact that the treadmill speed is stated as equal to wheel speed in the question. The only way this is possible is with instantaneous acceleration.
You have to think about this in a time frame divided into infinitely small increments.
Treadmill speed = X
Wheel speed = Y
Plane Forward speed = Z
Let X+ designates speed of the treadmill at an infinitesimal small amount of time after X
Since X = Y
Therefore
So X+ = Y+Z
What happens, though, is that treadmill speed accelerates instantaneously to infinity. But since there is no friction in the wheels, this doesn’t matter.
COMBINE THIS WITH WALTER ABOVE FOR TOTAL COMPREHENSION.
Given the exact same circumstances and equipment I would have like to see them do this:
Plane on conveyor. Plane moves forward at 1 mph and holds throttle.
Truck floors it in the negative direction (2000 feet of tarp) so it gets up to 100 mph in 30 seconds (hypothetical)
Planes wheel speed is 101 mph. Plane moves 44 feet in the same amount of time (30 seconds)in the positive direction.
Not that it would prove anything, it just would have been cool to see.
fixed.
if they do that, planes forward speed drops from 1mph to maybe .75 mph due to friction of the wheels
plane still moves forward, proving plane is capable of forward motion on a treadmill
the above proves plane can take off. as long as the plane can fly faster then its lift of speed (ie: has the excess power to overcome the SLIGHT rolling resistance of the wheels)
Not that this matters, but your math also sucks hard. The wheels would be spinning at 650MPH.
At this point, I really have to wonder who was the original person to think up this scenario, and pose the question.
I’d love to know what their original answer was, and what they’re thinking now.
$0.02
no shit. They’re probably patting themself on the back for all of the drama it caused