Take for instance David Bruton (a lighter guy, by Special Teams standards).
Bruton is 6'2", 220 lbs., and could bench press 225 lbs. 19 times 4 years ago.
Bruton runs a 4.40. Do some E=mc^2 on that, and see what you got. Pretty much, a whole **** ton of force. Now consider that there are 9 other guys a split second away who are just as fierce.