Answer:
329.6 m/s
Explanation:
The bullet has a projectile motion, consisting of two separate motions:
- A horizontal motion with constant velocity
- A free fall motion (constant acceleration) in the vertical direction
The bullet misses the target vertically by 1 m: this means that 1 m is the vertical dispalcement of the bullet. So we can find the total time of the flight by using the suvat equation

where
s = 1 m is the vertical displacement
u = 0 is the initial vertical velocity
is the acceleration due to gravity
t is the time
Solving for t,

The horizontal motion is at constant speed, which is given by

where
d = 149 m is the distance covered by the bullet
t = 0.452 s is the time taken
Substituting,
