-=> Quoting Jim Page to David R. Norton <=-
 DR> The question was if a
 DR> bullet (not a .22, just any bullet) was fired *straight* up (straight
 DR> means the bullet would fall back to the exact same spot),
 JP> Not exactly, but irrelevant.
 Exactly, and not irrelevant, that's a condition of the calculation.
 JP> how would
 DR> you calculate the velocity on it's return, and what factors would need
 DR> to be considered.  Since terminal velocity was mentioned, I said I
 DR> didn't think the bullet would go high enough to reach "terminal
 DR> velocity" on it's return.  Now you're up to date on the thread, but
 DR> we've all agreed, I think, that figuring air drag effects is a bit too
 DR> complicated.
 JP> Since so many bullets are fired at supersonic speeds, I doubt your
 JP> contention.  Terminal velocity will not exceed the speed of sound very
 JP> often.
 Neither will some bullets.  I believe the shape factor will allow
 terminal velocity on some bullets to exceed the speed of sound, but
 like I said, it's really not worth fooling with.....
 Take Care,
 David R. Norton [norton@doitnow.com]
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