At the instant θ = 30°, the frame of the crane is rotating with an angular velocity of w 1...

At the instant θ = 30°, the frame of the crane is rotating with an angular velocity of w 1 = 1.5 rad/s and angular acceleration of ω1 = 0.5 rad/s2, while the boom AB rotates with an angular velocity of ω2= 0.5 rad/s and angular acceleration of ω2= 0.25 rad/s2. Determine the velocity and acceleration of point B at this instant.