Posted by Denis Borris on November 11, 2002 at 15:07:02:
In Reply to: hints posted by T.Gracken on November 11, 2002 at 12:53:32:
: : Sound- 1100 Feet per Second
: : Bullet- 1650 FPS
: : Impact of bullet is heard 1/4 second before report of gun.
This won't tell you HOW to do it, but applies to all similar cases:
Let S = Slower speed, F = Faster speed, K = time difference, D = Distance
D = KFS / (F - S)
So, in your case:
D = 1/4(1650)(1100) / (1650 - 1100)
Above brought to you with the compliments of:
Joseph John Denis Alfred Borris, formula maker extraordinaire !!
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