A projectile fired into the first quadrant from the origin of a coordinate system will pass through the point (x, y) at time t according to the relationship where is the angle of elevation of the launcher and g is the acceleration due to gravity (32.2 feet/second). An artilleryman is firing at an enemy bunker located feet up the side of a hill that is feet away. He fires a round, and exactly seconds later he scores a direct hit.