A spacecraft forms a circular orbit at an altitude of 150 km above the surface of a spherical
Earth. Assuming the gravitational parameter, µ = 3.986 × 10 14 m3/s2 and radius of earth,
RE = 6,400 km, the velocity required for the injection of the spacecraft, parallel to the local
horizon, is _______________ (accurate to two decimal places).
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2018 Q.44)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Space Dynamics** under *Flight Mechanics & Space Dynamics* (2 Marks, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Space Dynamics equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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