The radar tracking antenna oscillates about its vertical axis according to = 0 cos t,

The radar tracking antenna oscillates about its vertical axis according to θ = θ₀ cos ωt, where ω is the constant circular frequency and 2θ₀ is the double amplitude of oscillation. Simultaneously, the angle of elevation Φ is increasing at the constant rate Φ˙ = K. 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.

Transcribed Image Text:

B b 200 Problem 2/247