The orbital velocity of a planet revolving close to earth's surface is
The orbital velocity of a planet revolving close to earth's surface is
$\sqrt {2\,gR} $
$\sqrt {gR} $
$\sqrt {\frac{{2g}}{R}} $
$\sqrt {\frac{g}{R}} $
The orbital velocity of a planet revolving close to earth's surface is
$v=\sqrt{\frac{G M}{r}}$
$m \frac{v^{2}}{r}=\frac{G M m}{r^{2}} \quad v=\sqrt{\frac{G m}{R}}$
$g=\frac{G M}{R^{2}}$ $\left(g R^{2}\right)$
$v=\sqrt{g R}$
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