The Geostationary satellites are
Correct answer: B. Rotating with the speed of earth
- A. stationary
- B. Rotating with the speed of earth
- C. rotating very fastly
- D. rotating very slowly
Explanation
Geostationary satellites remain at the same position with respect to the Earth, so that they scan the same place in a better way. Therefore, the relative velocity of geostationary satellite with respect to the spinning motion of the Earth is 0 m/s.
This question appeared on the ETEA MDCAT 2011 paper, which you can sit online with every answer explained.
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About Satellite Motion and Orbital Velocity
Satellite motion uses gravitational force as the centripetal force required for circular orbit, giving relationships among orbital radius, period and orbital velocity. Questions cover geostationary conditions and weightlessness, while distinguishing orbital velocity, escape velocity and the satellite's tangential speed.
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