Your opponent is operating a model helicopter in a simulated battle. You have a gun that fires paintballs at a speed of 40 m/s. The helicopter is hovering 12 m above the ground and is 17 m from you. Just before you fire, the helicopter dives at twice the acceleration due to gravity. You take 0.2 s to correct your aim. What angle must your gun make with the horizontal to hit the helicopter on its way down?