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
$12\, km/s$
$1\, km/s$
$\sqrt 2 \,km/s$
$2\sqrt 2 \,\,km/s$
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
$ {v_0} = \frac{{{v_e}}}{{\sqrt 2 }} = \frac{2}{{\sqrt 2 }} = \sqrt 2 \;km/s$
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