Plane on conveyor belt

[ChaseT.]

I assumed it would be a sphere rotating on earth. Obviously if you're talking about the earth itself, there is no gravitational force around it to pull the plane off balance causing it to go headfirst. If there is a sphere on the surface of earth spinning, the gravity of the earth will make the plane become off-balance.

You know what happens when you assume, josh?

 

[Urban]

Yall simmer down now, I explained in the other thread what happens with planes on a conveyor belt, so shut the fuck up.

 

[SmashiusClay]

I like people who accept that the wheels are freespinning but stil hold that the movement of the conveyor belt will affect the movement of the plane. You all fail at even basic physics, the limiting factor would be tyre blowouts, if we allow this to remain a hypothetical situation then plane takes off.

F=ma

Force forward = thrust of engines/propellor

Force backwards = Friction of wheels (assumed negligible)

more force forward than back => plane accelerates forward

conveyor does what it likes wheel speed =/= plane speed so there's no effect on the plane's rate of acceleration.

If we allow for the conveyor to move the air above it then it moves the air towards the aircraft, generating more lift so it will actually take off at a lower speeed (relative to ground) than normal.

Anyone who doesn't understand yet go draw yourself a free body diagram and draw force arrows on it.