🚀 go-pugleaf

My original question as to how fast superman could run seems to have been 
misunderstood because a few people wrote me suggesting that on the moon 
or in outer space, he could run at the speed of light.  That would be 
flying and not RUNNING.  I'm more concerned with Superman being able to 
push off of the ground with a pair of Nike airs without falling down due 
to inertia and how long he has to wait before taking each step because 
gravity takes time to pull him back down from each step.  

On the other hand, if this speed IS fast enough so that his suit might 
burn up or something, THEN all the stuff with fluid dynamics and etc are 
relevant.  But I think his maximum speed won't reach that high.  

Because I have a VERY limited knowledge of physics, I would like some 
guesses from people as to how much friction there is between Superman's 
shoes and the ground (asphalt maybe) and how high he will hop with x 
amount of force from his legs.

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