markg wrote:
kalmar wrote:
MR D IS CORRECT FACE.
Can we lock this please before anyone starts being "clever"? (It's for your own good: several people died by my hand before the one on YakYak got done).
SORRY BUT NO, HE ISN'T FACE
As soon as the plane moves forward the 'rules' of the question are broken. The question is a paradox.
YOU ARE WRONG, AND YOU HAVE A GROTESQUELY UGLY FACE
The 'rules' refer to the speed of the conveyor belt matching the forward speed of the wheels, in reverse. If the wheels move forwards at 10 mph (relative to a point which is not moving at all), then the conveyor will "match" that by moving at 10mph in the opposite direction.
So, the wheels will "see" 20mph, but the plane will be moving at the same speed, regardless (less a very small amount for the additional rolling resistance and bearing friction).
I agree though, the question is expressly designed to cause the maximum amount of differing interpretation and argument