Re: Physics graduate from Daryn\'s alma mater\'s answer
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dude, one sec. if the plane's velocity is 100 mph in the +x direction and the conveyor's velocity is 100 mph in the -x direction (and the turbines are off), we agree that the plane is not moving relative to the ground, correct?
now what happens if you apply a force to the plane in the +x direction? is it locked in space? can it not move?
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Yeah I totally agree with you here.
The thing is, as stated in the original problem, the runway speeds up to compensate for the extra +x force.
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and the wind does too???
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