At the instant shown, bar AB rotates with a constant angular velocity ωAB = 24 rad/s. Lett...

At the instant shown, bar AB rotates with a constant angular velocity ωAB = 24 rad/s. Letting L = 0.75 m and H = 0.85 m, determine the angular acceleration of bar BC when bars AB and CD are as shown, i.e., parallel and horizontal.

Figure P6.133