Re: Rail guns (was: US SOCOM desires...)

[Brian McDonald <Brian_mcdonald@xxxxxxx>]

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>Assuming you've got a 75-kg soldier, your soldier is going to be
>traveling backwards at about 28 meters per second.  Or about 60mph. 
>He's going to hit something, which will slow him down, and that'll be a
>real pain in his ass, let me tell you.
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>Remember that recoil increases to the square of the velocity.  You want
>a round that travels ten times faster than modern rounds?  Fine--take a
>hundred times the recoil, please, and say hi to Sir Isaac when the
>recoil catapults you all the way into heaven.  :)
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Its a given that action and reaction happen but i think you have your 
numbers gummed up somehow.  the soldier weighs 15000 x what the slug 
weighs.  if the slug exits at 3500 m/s in a forward direction (assuming 
no recoil compensation at all) the soldier will move backward at a tad 
under one quarter m/s.  Seems to me kicks like a mule rather than a 
movie like wall tossing would be what happened.