Fighter airplane is flying horizontally at the altitude h=5000m with velocity of u=100m/s. When airplane passes directly above an air defense station, the battery fires a gun to intercept the airplane. Initial velocity of the projectile V(0)= 500m/s. Disregarding air resistance, find the following;
A) at which angle ? to the horizontal should the gun fire to hit the target?
B) what is the time t until the impact?
C) what is the horizontal distance s from the fun to the point of impact?