re: Can this 747 take off?

No we don’t. Why is everyone so hung up on this. What does the riddle actually say? Have you never heard of something not doing what’s it’s designed to do? It’s designed to match the speed, math says it can’t. The question doesn’t say the wheels can never move faster.

You guys are all reading that into a question that doesn’t say that. Which is the point of the question and all questions like this. It preys on people’s brains filling in assumptions that the question writer knows will happen and are also wrong.