That plane+conveyor belt problem

[crunchy1]

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Motion forward and motion upwards are orthogonal to each other - that means they're independent. You can move forward without moving up (airplane taxiing) and you can move or stay up without moving forward (you've seen seagulls do this on the beach). The plan can move along the ground as fast or as slow as it wants with gigantic turbo mega-jets or a 2HP outboard motor, but if there's no force pushing upwards, it will not fly (i.e. take off).

So if the spirit of the question is that the plane remains stationary relative to its surroundings (aside from the conveyor) and there's no wind, then there's nothing pushing up and it won't take off. If the question is just some [censored] semantics question related to wheel speed, etc. then there is no correct answer.

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Solid response.

[daryn]

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The much better question is the NightRider question. The NightRider car is going 63mph to catch a truck with the back hatch open going 60mph. He is going to go up the ramp and park on the truck while going down the interstate. How come when is back wheels reach the ramp he doesn't go flying through the front of the truck at 63mph?

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I think the answer to that is: it's TV, it's not real.

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correct

[slickpoppa]

Although now that I think about it, the car into truck thing could work if the hatch had really good frictionless rollers on it that would prevent the car from getting any traction.