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Gravitation question

2015 · Q141
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Gravitation question

2015 · Q141

NEETPhysicsGravitationMCQ+4 / −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. Then,
  1. A
    the linear momentum of S remains constant in magnitude.
  2. B
    the acceleration of S is always directed towards the centre of the earth.
  3. C
    the angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant.
  4. D
    the total mechanical energy of S varies periodically with time.
View written solutionFree

Correct answer: B

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.

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