At the instant shown, the tower crane rotates about the z axis with an angular velocity ω1...

At the instant shown, the tower crane rotates about the z axis with an angular velocity ω1= 0.25 rad/s, which is increasing at 0.6 radjs2. The boom OA rotates downward with an angular velocity ω2 = 0.4 rad/s, which is increasing at 0.8 rad/s2. Determine the velocity and acceleration of point A located at the end of the boom at this instant.