Question

(b) Find the centroid ($ar{x}, ar{y}$) of the cross sectional area shown in Figure 1(b). Determine the moment of inertia (second moment of area) about y axis ($I_y$). (75 marks)

          (b) Find the centroid ($ar{x}, ar{y}$) of the cross sectional area shown in Figure 1(b).
Determine the moment of inertia (second moment of area) about y axis ($I_y$).
(75 marks)

Added by Jesus L.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Linda Winkler

Step 1

It appears to be a composite shape made up of rectangles. Break down the shape into simpler rectangles for easier calculation. Assume the following rectangles: - Rectangle A: 80 mm (height) x 15 mm (width) - Rectangle B: 125 mm (height) x 15 mm (width) - Rectangle Show more…

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(b) Find the centroid (x,y) of the cross sectional area shown in Figure 1(b) Determine the moment of inertia (second moment of area) about y axis (Iy) 80 mm 15 mm 125 mm 15 mm 15 mm 80 mm Figure 1(b)