A bullet having a velocity of 680 m/s hits a target 510 m away. If the temp. of the air was 18 degrees celsius, how long after the bullet was fired did she hear it hit the target?

Question

A bullet having a velocity of 680 m/s hits a target 510 m away.  If the temp. of the air was 18 degrees celsius, how long after the bullet was fired did she hear it hit the target?

bobpursley · Answer

Figure two things a) time it takes bullet to hit target: time=distanc/velocitybullet b) time for sound to travel back to the shooter time= distance/velocitysound Add those two times.