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,

Options

(a) the linear momentum of S remais constant in magnitude.
(b) the acceleration of S is always directed towards the centre of the earth
(c) the angular momentum of S about the centre of the earth changes in directin, but its magnitude remains constant
(d) the total mechanical energy of S varies periodically with time

Correct Answer:

the acceleration of S is always directed towards the centre of the earth

Explanation:

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