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
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
- A
$12\,km/s$
- B
$1\, km/s$
- C
$\sqrt 2\,km/s$
- D
$2\sqrt 2\, km / s$
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