Question

The orbital angular velocity vector of a geostationary satellite and the spin angular velocity vector of the earth are

• A. always in the same direction
• B. always in opposite direction
• C. always mutually perpendicular
• D. inclined at 23 1/2 to each other

Answer 1

The correct option is A always in the same direction

For the satellite to be 'synchronous' with the Earth, its period of revolution should be equal to Earth's rotation. For this, the satellite has to revolve along the direction of Earth's rotation thus their angular velocity vector always point in the same direction.