A rifle is aimed horizontally toward the center of a target 0.10 kilometer away, but the bullet strikes 10 centimeter below the center.
(a) Find the time it takes for the bullet to strike the target.
(b) Find the velocity of the bullet just as it emerges from the rifle.
(c) Find the velocity of the bullet right before it hits the target.
(d) If a bullet that leaves the muzzle of a gun at 250 meter per second is to hit a target 100 meter away at the level of the muzzle, the gun must be aimed at a point above the target. Determine how far above the target is the point?