I was wondering. You've got these motorcycle racers. They turn sharp turns - the motorcycle is like 35 degrees to the ground, and their knees are just about touching. Crazy.
Is it okay for their knees to at least skim the road, accidentally, or if they make contact will they go flying? Because in other to touch stationary ground, that part of your body will be stationary momentarily. So I would think they would crash. But how much do they have to touch the ground?
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