The radar tracking antenna oscillates about its vertical axis according to where is th...

The radar tracking antenna oscillates about its vertical axis according to where is the constant circular frequency and is the double amplitude of oscillation. Simultaneously, the angle of elevation is increasing at the constant rate Determine the expression for the magnitude a of the acceleration of the signal horn (a) as it passes position A and (b) as it passes the top position B, assuming that θ = 0 at this instant.