PROBLEM 9.92 Using Mohr’s circle, determine the moments of inertia and the product of inertia of the area of Problem 9.72 with respect to new centroidal axes obtained by rotating the xand yaxes 45° clockwise. SOLUTION From the solution to Problem 9.72: 4501.1875 inxyI=Problem 9.80: 4865.6875 inxI=44758.75 inyI=Now ()412812.21875 in2xyII+=411946.53125 in2−=−The Mohr’s circle is defined by the points
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