Consider the coin in Exercise 10.2. Describe the location of the invariable plane relative to the coin. Graph the projections of the polhode curve onto the principal axis planes, and show in each graph the intersection of the coordinate plane with the inertia ellipsoid. Assess these projections in light of the space and body cone construction for axisymmetric bodies.
Exercise 10.2
A coin is tossed into the air with plane horizontal and its initial angular velocity at 15? off-vertical, as shown in the sketch. Construct the space and body cones at the instant of release, and also evaluate the precession and spin rates.