At the instant shown, the tower crane rotates about the z axis with an angular velocity
Chapter 20, Problem 20-15(choose chapter or problem)
At the instant shown, the tower crane rotates about the z axis with an angular velocity \(\omega_{1} = 0.25 \ rad/s\), which is increasing at \(0.6 \ rad/s^{2}\) . The boom OA rotates downward with an angular velocity \(\omega_{2} = 0.4 \ rad/s\), which is increasing at \(0.8 \ rad/s^{2}\). Determine the velocity and acceleration of point A located at the end of the boom at this instant.
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