Each of the slender rods of length l and mass m is welded to the circular disk which rot...

Each of the slender rods of length l and mass m is welded to the circular disk which rotates about the vertical z-axis with an angular velocity ω. Each rod makes an angle β with the vertical and lies in a plane parallel to the y-z plane. Determine an expression for the angular momentum H_O of the two rods about the origin O of the axes.