A small rocket having a specific impulse of 200s produces a total thrust of 98kN, out of which 10kN
is the pressure thrust. Considering the acceleration due to gravity to be 9.8m/s2, the propellant mass
flow rate in kg/s is
(A) 55.1 (B) 44.9 (C) 50 (D) 60.2
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2014 Q.19)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Air-Breathing & Rocket Propulsion** under *Propulsion* (1 Mark, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Air-Breathing & Rocket Propulsion equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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