Question

Locate the centroid Y of the channel's cross-sectional area, and then determine the moment of ine...

Locate the centroid Y of the channel's cross-sectional area, and then determine the moment of inertia with respect to the x' axis passing through the centroid. MUST BE DONE USING AN EXCEL SPREADSHEET!

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Answer #1

cell formula

B19 =C12

C19   =E12

D19   =B19*C19

E19   =E12 - C19/2

F19   =B19*C19^3 /12 + D19*(E19-E21)^2

B20   =B12

C20   =D12

D20 =B20*C20

E20 =E12 - C20/2

F20 =B20*C20^3 /12 + D20*(E20-E21)^2

D21 =D19-D20

E21   =(D19*E19- D20*E20)/D21

F21   =F19-F20

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