Gravitation Question 144
Question: For the moon to cease to remain the earth’s satellite, its orbital velocity has to increase by a factor of [MP PET 1994]
Options:
A) 2
B) $ [\sqrt{2}] $
C) $ [1/\sqrt{2}] $
D) $ [\sqrt{3}] $
Show Answer
Answer:
Correct Answer: B
Solution:
$ [v_{e}=\sqrt{2},v_{0},] $ i.e. if the orbital velocity of moon is increased by factor of $ [\sqrt{2}] $ then it will escape out from the gravitational field of earth.
