Question

Match the following types of satellites to their possible critical velocity.

• A. 7 km/s
• B. 2.5 km/s
• C. 5.5 km/s

Answer 1

The higher the satellite is from the earth's surface, the lesser is the critical velocity needed to keep the satellite in the orbit around the earth.
So, the order of critical velocity of the given satellites would be: HEO < MEO < LEO.