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?

Answer 1

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