A rod with a sphere attached to the end is connected to a haorizontal mounted axle and carefully balanced so that it rests in a position vertically upward from the axle. The center of mass of the rod sphere system is indicated with a circle and an "X" through the center of the circle, as shown in Figure The sphere is lightly tapped, and the rod sphere systm rotates clockwise with negligible friction about the axle due to the grawvitational force. Figure | A student takes a video of the rod rotating from the vertically upward position to the wertically downward postion. Figure 2 shows five frames (still shots that the student selected from the vides). Mote: these frames are not equally spaced apart in time. frmed | framen Frame Frame Frame E Tl The rod-sphere has mass M and length L, and the center of mass is located a distance 3: L from the axle, shown in Figure 3. Figare 3 In which frame is the angular acceleration of the rod sphere the greatest? Justify your answer. In which frame is the rotational kinetic energy of the red sphere system the greatest. Justify your answear