1.

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

Answer»

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
the linear momentum of S remains constant in magnitude

Answer :A


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