(Solved): In order to experimentally determine the moment of inertia IG of a 4kg connecting rod-the rod ...

In order to experimentally determine the moment of inertia $$I_G$$ of a $$4?\mathrm{kg}$$ connecting rod-the rod is suspended horizontally at $$A$$ by a cord and at $$B$$ by a bearing and piezoelectric sensor, an instrument used for measuring force, as shown in (Figure 1). Under these equilibrium conditions, the force at $$B$$ is measured as $$13.8\mathrm{N}$$. If at the instant the cord is released the reaction at $$B$$ is measured as $$9.3\mathrm{N}$$, determine the value of $$I_G$$. The support at $$B$$ does not move shen the measurement is taken. For the calculation, the horizontal location of $$G$$ must be determined. Express your answer to three significant figures and include the appropriate units.