Gravitation Question 266

Question: A satellite with kinetic energy $ [E_{k}] $ is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer space [KCET (Engg./Med.) 2001]

Options:

A) $ [E_{k}] $

B) 2$ [E_{k}] $

C) $ [\frac{1}{2}E_{k}] $

D) 3$ [E_{k}] $

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Answer:

Correct Answer: A

Solution:

Binding energy = ? kinetic energy And if this amount of energy $ [(E_{k})] $ given to satellite then it will escape into outer space



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