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Recent Comments
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latest episodes
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What I don't understand has nothing to do with the question or even the wording of the question.
Why would you ASSUME the airplane is being held stationary? Where in the question does it say that? What is it about the word "treadmill" or "conveyor belt" that automatically means "stationary"? Why would you change the the question to insert your own idea of using a ropes and clamps to hold the airplane from moving forward? I didn't see those words in the question and neither did you, so why would you change the question with your assumptions?
There's a conveyor belt, there's an airplane, and there's air, nothing more. Don't add or subtract from what's given.