Question

I need help on this Static problem

Thank you!

Using the parallel-axis theorem, determine the product of inertia of the area shown with respect to the centroidal x and y axes. 60 mm-60 mm 40 mm 40 mm

Answer 1

Product moment of inertia about c I_xy (1) = (b^2 h^2/4) (2) I_xy(2) = (bh^2/24) (2) I_xy = I - xy_1 + I_xy_2 = 60^2 times 40^2/4 times 2 + 60^2 times 40^2/24 (2) = 7 (60^2 times 40^2)/12 I_xy = 3.36 times 10^6 mm^4