Manual page 62 :(

[Tomahawko]

"There’s a plane on a magical threadmill runway. The threadmill defies
the laws of physics and can rotate as fast as the plane [CUT] is moving
in the opposite direction. If the plane rolls forward at 10 mph, the runway
underneath rolls backwards at 10 mph. The plane’s wheels spin up to 200 mph
and the runway rolls back at 200 mph. The question is, will the plane move
forward and take off or remain stationary?
If you had to think about it for even a second, you need to read this chapter.
The answer of course is yes, the plane will take off as normal."

You still need to get away from "The plane's wheels spin up to 200 mph." Stick with "The plane move's forward 200 mph."
Theoretically speaking, I can make a wheel spin however fast I want. That doesn't mean the wheel itself is moving forward which is necessary when dealing with a plane. A plane needs the airflow under/over the wing to create lift. Without that it's hogwash.

[Letum]

Originally Posted by Tomahawko

You still need to get away from "The plane's wheels spin up to 200 mph." Stick with "The plane move's forward 200 mph."
Theoretically speaking, I can make a wheel spin however fast I want. That doesn't mean the wheel itself is moving forward which is necessary when dealing with a plane. A plane needs the airflow under/over the wing to create lift. Without that it's hogwash.

ed: yup, your right. My post will be edited.

[Tomahawko]

A better riddle would be:

If you put a magical frictionless plane in a wind tunnel where the plane moves neither forward or backward will it fly?

Something along those lines, as I didn't think through all the facets.

EDIT: Or skip the magic and attach a string.

[Letum]

Originally Posted by Tomahawko

If you put a magical frictionless plane in a wind tunnel where the plane moves neither forward or backward will it fly?
.

Haha! Concise!

[Kianoni]

yup precisely, the wording on the riddle is very badly put considering that the magic conveyor belt has nothing to do with the air around the plane. a much more logical question would be "if a plane sits on a runway and the wind is blowing at the speed that is required for the plane to take of.." but even that requires thinking. maybe it would have been easier to explain that groundspeed has nothing to do with lift, but take or leave - even I can be fooled by words and stumble on my own.