Question

Moments of Inertia for Composite Areas Item 1 Because the principle of superposition applies to moments of inertia, we are free to section a shape in any way we like provided no part of the shape is left out or contained in more than one section. The original shape could have been sectioned in the following manner Part A-Moment of Inertia of a Composite Beam about the x axis ▼ For the built-up beam shown below, calculate the moment of inertia about the axis. (Figure 7) The dimensions are di 6.5 in, d 13.5 in, d 7.5 in, and t 0.60 irn. Express your answer to three significant figures and include the appropriate units. View Avalilable Hint(s) (Figure 3) and the calculated moment of inertia for the composite would have been the same. Part of the "art" of finding the moment of inertia of a composite shape is determining how to section the shape. For example, if the moment of inertia about the y axis were needed, the first sectioning would be better. The second sectioning makes calculating the moment of inertia about thez axis easier For this tutorial will need the foll moments of inertia: (Figure 4) (Figure 5) (Figure 6) IValue Units 12 12 Submit 36 36 Part B-Moment of Inertia of a Composite Beam about the y axis For the beam from Part A (shown again here for reference), calculate the moment of inertia about the y axis. (Figure 7) The dimensions are d6.5 in, d2-13.5 in, dz -7.5 in, andt 0.60 in. Express your answer to three significant figures and include the appropriate units. ▼ Figure 1 of 8 View Available Hint(s) Iy-Value Units Submit

Answer 1

kindly provide right figure for the questions no. c, d

solution of part A, B are here, comment in case of any doubt and rate the answer

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