posted by anonymous .
23. A rifle is aimed horizontally toward the center of a target 71.4 m away. If the bullet strikes 10 cm below the center, what was the velocity of the bullet?
First calculate how long (T) it takes the bullet to fall 10 cm, with zero initial vertical velocity component.
(1/2) g T^2 = 0.1 meter
T = 0.143 s
Then solve V*T = 71.4 m, to get V