How many times is escape velocity $({V_e})$, of orbital velocity $({V_0})$ for a satellite revolving near earth
How many times is escape velocity $({V_e})$, of orbital velocity $({V_0})$ for a satellite revolving near earth
$\sqrt 2 \, times$
$2\, times$
$3\, times$
$4\, times$
How many times is escape velocity $({V_e})$, of orbital velocity $({V_0})$ for a satellite revolving near earth
For a spherically symmetric massive body such as a star or planet, the escape velocity for that body, at a given distance is calculated by the formula$:$
$v_{e}=\sqrt{\frac{2 G M}{r}}$
For orbital velocity of a satellite in a circular orbit close to the earth's surface$:-$
$v_{0}=\sqrt{\frac{G m}{R}}$
Hence, $v_{e}=\sqrt{2} v_{0}$
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