Something amazing to tell you concerning physics and motion

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Originally Posted by arc

I only had time to skim this thread. Could someone give me the Cliff's notes on the Donkey fans' argument on why it won't take off? Is it because the spinning wheels have matching friction that matches the thrust of the engine or is because the spinning wheels can't transfer the force of the engines to the ground to get the plane moving?

Neither.

In order to move forward while contacting the ground, the wheels must roll - which puts a new piece of wheel in contact with a new piece of ground. The conveyor belt is matching this rolling (in the opposite direction) so the new piece of ground is in the same place as the original.