Two balls each of unknown mass m are mounted on opposite ends of a 1.5-m-long rod of
Chapter 13, Problem 70(choose chapter or problem)
Two balls each of unknown mass m are mounted on opposite ends of a 1.5-m-long rod of mass 850 g. The system is suspended from a wire attached to the center of the rod and set into torsional oscillations. If the wire has torsional constant 0.63 N m/rad and the period of the oscillations is 5.6 s, whats the unknown mass m?
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