Gravitation Question 276
Question: A geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, is velocity must be increased[J&K CET 2005]
Options:
A) 100%
B) 41.4%
C) 50%
D) 59.6%
Show Answer
Answer:
Correct Answer: B
Solution:
$ [v_{e}=\sqrt{2}v_{0}=1.414\ v_{0}] $ Fractional increase in orbital velocity$ [\left( \frac{\Delta v}{v} \right)] $ $ [=\frac{v_{e}-v_{0}}{v_{0}}=0.414] $ Percentage increase = 41.4%
