Gravitation Question 175
Question: The value of escape velocity on a certain planet is 2 km/s. Then the value of orbital speed for a satellite orbiting close to its surface is [DCE 2005]
Options:
A) 12 km/s
B) 1 km/s
C) $ [\sqrt{2}] $ km/s
D) $ [2\sqrt{2},,km/s] $
Show Answer
Answer:
Correct Answer: C
Solution:
$ [v_{0}=\frac{v_{e}}{\sqrt{2}}=\frac{2}{\sqrt{2}}=\sqrt{2}\ km/s] $
