Consider a launch vehicle of mass 10 tons being launched vertically. The vehicle
has 8 tons of propellant, which burns completely at a constant rate over 50 s. If the
engine specific impulse is 250 s, and the acceleration due to gravity at sea level is
g0, the acceleration experienced by the vehicle at lift-off is ________.
Options:
(A) g0
(B) 2g0
(C) 3g0
(D) 4g0
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2026 Q.41)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (2 Marks, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Incompressible & Compressible Aerodynamics.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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