NEET 2015 Physics and Chemistry Paper

Question : 14 of 91

Marks: +1, -0

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,

[NEET 2015]

the linear momentum of 5 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.
the total mechanical energy of S varies periodically with time.

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