$8$:$59$

A B

$5$G

$77\%$

Figure for second question:

What is the rotational inertia of this rigid structure about an axis that passes through one of the diagonals of the square $($and thus is in the plane of the square, as in the lower figure$)?$

$I=$

$kg*m^2$

Figure for third question:

Question Help:

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III