Posted by T.Gracken on November 11, 2002 at 12:53:32:
In Reply to: Distance posted by Randy on November 11, 2002 at 11:24:03:
: Sound- 1100 Feet per Second
: Bullet- 1650 FPS
: Impact of bullet is heard 1/4 second before report of gun.
: What point is along the path of the bullet did the above happen and how far away is the target?
: Please give step by step explanation. Thanks for your help.
recall that rate*time=distance (uniform motion), so time=distance/rate
suppose d is the distance the bullet traveled.
let t1=d/1100 (time it takes to hear report of gun)
let t2=d/1650 (time it takes to hear impact [or feel bullet penetrate body part])
t1 = t2 + 1/4
now solve for d.
if you want more explanation, show us what you have tried.
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