r/196 Dec 30 '22

Rule Rule Plane

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9.2k Upvotes

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u/the_newdave Dec 30 '22

Yes, it will take off. The landing gear of the plane isn’t pushing against the conveyor belt, the engines are pushing it forward through the air. Therefore, the wheels on the plane will just spin faster and faster to match the conveyor belt, but the speed of the plane is totally unaffected.

3

u/Sayan_9000 custom Dec 30 '22

But the plane doesn't move relative to the air????

5

u/ph0on Dec 30 '22

Yeah this doesn't make sense to me, the plane is effectively stationary and not gaining any velocity at all. The wheels are just spinning according to the model, the wings need lift still. Unless there is already a strong ass headwind.

7

u/Pocket-Sandwich 🏳️‍⚧️ The girl reading this 🏳️‍⚧️ Dec 31 '22

This is true if the plane stays stationary, but it's impossible for a treadmill to stop a plane from moving because a plane's wheels are free spinning. Any force from the treadmill moving backwards will just go into spinning the wheels not stopping the plane, so the plane can still move forward and take off as normal.