Use the worked example above to help you solve this problem. In an effort to be the star of the half-time show, a majorette twirls an unusual baton made up of four spheres fastened to the end of very light rods (see figure). Each rod is 1.60 m long. (a) Find the moment of inertia of the baton about an axis perpendicular to the page and passing through the point where the rods cross.
kg · m2
(b) The majorette tries spinning her strange baton about the axis OO', as shown in the figure. Calculate the moment of inertia of the baton about this axis.
kg · m2