Question

Is it possible to place a satellite in orbit so that it is always directly above 60°N latitude?

Explain why or why not.

Answer 1

No,

The Coriolis forces present in a rotating frame like earth does not allow a satelite to be always directly above a particular latitude other than the equator . On equator , there is no Coriolis force. In the northern or southern hemispeheres , the Coriolis force acts on a body perpendicular to the axis of rotation of earth and the direction of motion of the body. Which pushes satellites out of orbits, the trajectory of projectiles like rockets also will be sabotaged by Coriolis force if not considered in the trajectory calculations. You can now deduce why space centres and launching stations are preferred to be near equator. Hope this answered the question and hope youu were not expecting a rigorous derivation.