At the instant θ = 60°, the construction lift is rotating about the z axis with an angular...

At the instant θ = 60°, the construction lift is rotating about the z axis with an angular velocity of ω1 = 0.5 rad/s and an angular acceleration of ω1= 0.25 rad/s2 while the telescopic boom AB rotates about the pin at A with an angular velocity of ω2= 0.25 rad/s and angular acceleration of ω2= 0.1 rad/s2. Simultaneously, the boom is extending with a velocity of 1.5 ft/s, and it has an acceleration of 0.5 ft/s2, both measured relative to the frame. Determine the velocity and acceleration of point B located at the end of the boom at this instant.