ELIF: How does drafting work? Is it possible for humans to run behind a large vehicle that’s traveling at speeds faster than they are capable of reaching?
In: Physics
When predicting drag, you look at the cross sectional area of the object, the drag coefficient, and the speed^2 of the air flowing at it. You can’t change area or drag coefficient externally, but the speed of the air can be changed. If the air behind a bus is half the speed of the bus, then that’s 1/4 the drag. That’s why running downwind is easier also.
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