Originally Posted by

**sstecken** Question:

Distance to a target: A bullet is fired horizontally at a target, and the sound of its impact is heard 1.5 seconds later. If the speed of the bullet is 3300 ft/sec and the speed of sound is 1100 ft/sec, how far away is the target?

I know that 0.25 of the 1.5 sec journey (0.375sec) is spend on the bullet and that the distance is 1237.5 ft. This corresponds with the back of the book and makes sense. Still, I'm not sure how to formalize this question into a practical equation. Can someone give it a go?

Thanks.