Gravitation Ques 35
35. 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,
[2015 RS]
(a) the total mechanical energy of $S$ varies periodically with time.
(b) the linear momentum of $S$ remains constant in magnitude.
(c) the acceleration of $S$ is always directed towards the centre of the earth.
(d) the angular momentum of $S$ about the centre of the earth changes in direction, but its magnitude remains constant.
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Answer:
Correct Answer: 35.(c)
Solution:
- (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.
BETA
