Calculate the virtual work associated with the forces F1 and F2 in Figure 8.29b by i) treating each force individually, and ii) calculating the resultant moment and using the counterpart of Equation...

Calculate the virtual work associated with the forces F1 and F2 in Figure 8.29b by i) treating each force individually, and ii) calculating the resultant moment and using the counterpart of Equation (8.63) for rotational motion. Show that the two results are equivalent.