From: joe_f@verizon.net   
      
   Elliott Grasett  writes:   
      
   > Joe Fineman wrote:   
   >> Uranium is *very* heavy.   
   >   
   > And, arguably, it's the velocity of the boot, not it's mass, that   
   > matters.   
      
   I had in mind that football players spend a good deal of their time   
   running.  Uranium-loaded boots would make that extremely tiresome, and   
   that effect is in fact dependent on mass -- more weight to be lifted,   
   more inertia to be overcome in starting, stopping, & turning.   
      
   Some of them sometimes kick a ball.  The effect of boot mass on that   
   is a good freshman physics problem, which I just solved, very likely   
   making a mistake somewhere.  The answer that I get is that, at the   
   same velocity, a massive boot will make the ball go faster than a   
   light one, but if one takes into account that a massive boot will not   
   be going as fast on impact because the force exerted by the player   
   will not accelerate it as much, then a light boot is better.   
      
   Finally, some of them sometimes kick other players.  For that, it is   
   the kinetic energy that matters, and mass is advantageous.   
   --   
   ---  Joe Fineman    joe_f@verizon.net   
      
   ||:  It takes three years to learn to talk, and thirty to learn  :||   
   ||:  to shut up.                                                 :||   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)