engineering physics MCQ #673

A satellite is orbiting the Earth at an altitude of 400 km. What is its orbital velocity?

engineering physics MCQ #673

  1. Question 1

    Q1. A satellite is orbiting the Earth at an altitude of 400 km. What is its orbital velocity?

    • A) 7.6 km/s
    • B) 7.4 km/s
    • C) 7.2 km/s
    • D) 7.0 km/s

    Answer: 7.6 km/s

    Explanation: The orbital velocity is given by v = √(G * M / (R + h)) = √(g * R² / (R + h)), v ≈ 7.6 km/s.