Shot gun ammo coming out the other side wall with constant acceleration, the speed of the shot guns s/m decrease from 20 m/s 2 the rest if the time that a bullet hole through the wall with s 2.
Fired through walls with constant acceleration. The velocity of the projectile dropped from 20 m / s to 2 m / s if the bullet through the wall. equal to 2 s
Shooting a bullet through a wall at the speed constant. By the speed of projectile decreased from 20 m / s left 2 m / s if the bullet time through the wall of 2 s .