An unmanned radar-radio controlled aircraft with tilt-rotor propulsion is being designed...

An unmanned radar-radio controlled aircraft with tilt-rotor propulsion is being designed for reconnaissance purposes. Vertical rise begins with θ = 0 and is followed by horizontal flight as θ approaches 90°. If the rotors turn at a constant speed N of 360 rev/min, determine the angular acceleration α of rotor A for θ = 30° if is constant at 0.2 rad/s.