The truck’s bed weighs 8000 lb and its moment of inertia about O is 33,000 slug-ft2. At th...

The truck’s bed weighs 8000 lb and its moment of inertia about O is 33,000 slug-ft2. At the instant shown, the coordinates of the center of mass of the bed are (10, 12) ft and the coordinates of point B are (15, 11) ft. If the bed has a counterclockwise angular acceleration of 0.2 rad/s2, what is the magnitude of the force exerted on the bed at B by the hydraulic cylinder AB?