Solve this:

27. A satellite going around the earth in a circular orbit loses some energy due to collision. Its speed is V and distance from the earth is d, then due to this collision.

(1) d will increase the v will increase.
(2) d will increase and v will remain constant
(3) d will decrease and  will decrease .
(4) d will decrease and v will increase. 

Dear Student ,
Here in this case as the satellite after collision losses energy , then d will decrease and v will increase .
Hence due to the collision the energy will decrease naturally the distance d will decrease and as the distance d decreases the velocity v will increase .
So the correct option is (4) .
Regards
 

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