58. A A ball of mass M is con- nected to a second ball of mass m by a massless, rigid rod of length L (Fig. P13.58). a. Show that for an axis perpendicular to the rod, the minimum rotational inertia of the system is for an FIGURE P13.58 axis passing through the center of mass. b. What is the mini- mum rotational inertia of the system for an axis perpendicular to the rod? M CM L m

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