An airplane of mass 1000 kg is in a steady level flight with a speed of 50 m/s. The
wing has an elliptic planform with a span of 20 m and planform area 31.4 m 2.
Assuming the density of air at that altitude to be 1 kg/m 3 and acceleration due to
gravity to be 10 m/s2, the induced drag on the wing is _________ N (rounded off to
1 decimal place).
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2024 Q.64)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Incompressible & Compressible Aerodynamics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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