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A satellite S is moving in an elliptical...

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.

A

The acceleration of `S` is always directed towards the centre of the earth.

B

The angular momentum of `S` about the centre or the earth changes in direction, but its magnitude remains constant.

C

The total mechanical energy of `S` varies perodically will time.

D

The linear momentum `S` remains constant in magnitude

Text Solution

Verified by Experts

The correct Answer is:
A
`vecF=(mv^(2))/r hatr`
where `hatr` is until vector denoting the direction of centripetal force which is always towards the earth So, acceleration will also be towards the earth. So acceleration will also be towards centre of earth.
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