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re: Can this 747 take off?

Posted on 4/11/24 at 11:22 pm to
Posted by PhysicsGuy
Member since Apr 2024
22 posts
Posted on 4/11/24 at 11:22 pm to
Because the belt can never go faster than the wheels, they are free spinning so they match the speed of the belt 1 for 1. Hence why when you add in thrust the belt is always behind because everything it does to speed up to match the thrust is just instantly offset by a corresponding wheel acceleration.

The belts speed is a dependent variable with the speed of the wheel, but the wheel has an independent source of forward acceleration.
Posted by VanRIch
Wherever
Member since Sep 2007
10512 posts
Posted on 4/13/24 at 8:04 pm to
I don’t know why you’re getting downvoted, you’re 100% spot on.
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