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A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then,
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- the total mechanical energy of S varies periodically with time.
- the linear momentum of S remains constant in magnitude.
- the acceleration of S is always directed towards the centre of the earth.
- the angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant.
Correct Option: C
The gravitational force on the satellite will be aiming towards the centre of the earth so acceleration of the satellite will also be aiming towards the centre of the earth.