An aircraft is flying at 480 ft/s with an elevation of 135 ft from the ground, on a straight-line path that will take it directly over an anti-aircraft gun

Question

An aircraft is flying at 480 ft/s with an elevation of 135 ft from the ground, on a straight-line path that will take it directly over an anti-aircraft gun. How fast, in radians per second, will the gun have to turn to accurately track the aircraft when the plane is:

1000 feet away from the gun? Answer	=
500 feet away from the gun? Answer	=

Answer 1

I looked at the problem as the Hight is a constant and the Tan of the angle is opp/adj

the opposite sidte is 135 and the adj. side is is changing by 450t

tan of the angle is 135/450t so the angle will be the arctan 135/450t

and put it in radians