PROBLEM 9.93 Using Mohr’s circle, determine the moments of inertia and the product of inertia of the area of Problem 9.73 with respect to new centroidal axes obtained by rotating the xand y axes through o30 clockwise. SOLUTION From Problems 9.73 and 9.81 64138.2410 mmxyI=×51.84xIπ162.86103.68yI325.72Now ()ave12xyIII=+244.29222xyxyRI−160.4405From Problem 9.87 259.5mθ=°Then 18060260.5mαθ=−°−= °Then
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