For a thin-walled I section, the width of the two flanges as well as the web height
are the same, i.e., 2b = 20 mm. Thickness is 0.6 mm.
The second moment of area about a horizontal axis passing through the centroid is
______ mm4.
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.61)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Structural Mechanics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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