Question 9.13: Determine the orbital velocity of a spacecraft at an altitud...

Aircraft performance An Engineering Approach

Determine the orbital velocity of a spacecraft at an altitude of 200 km from the earth if the weightlessness is desired. Assume the gravity is 9.8 m/s² at the height of 200 km and the earth’s radius is 6371 km. Then, compare this velocity with the speed of sound at the sea level (i.e., 340 m/s).

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