Question

A uniform thin rod of mass M = 3.25 kg pivots about an axis through its center and perpendicular to its length. Two small bodies, each mass of M =0.245 kg are attached to the ends of the rod. What must the length L of the rod be so that the moment of inertia of the three-body system with respect to the described axis is I = 0.805 kg *m^2

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