The escape velocity for a planet is v e . A particle is projected from its surface with a speed v. For this particle to move as a satellite around the planet,
A
< v <v e
B
< v <v e
C
v e < v < 
v e
v e
D
< v < 
Text Solution
Verified by ExpertsThe correct answer is:
B
For a satellite orbiting very close to the earth’s surface, the orbital velocity = 
( Q mg =
mv 2 /R). This is equal to the velocity of projection and is the minimum velocity required to go into orbit. Also, the satellite would escape completely and not go into orbit for v ≥ ≥ v e .
⇒ ⇒ v e / √ √ 2 < v < v e .
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