A satellite is revolving in a circular equatorial orbit of radius \( R=2 \times 10^{4} \mathrm{~...

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A satellite is revolving in a circular equatorial orbit of radius \( R=2 \times 10^{4} \mathrm{~km} \) from east to west. Calculate the interval
\( \mathrm{P} \) after which it will appear at the same equatorial town. Given that W the radius of the earth \( =6400 \mathrm{~km} \) and \( g \) (acceleration due to gravity) \( =10 \mathrm{~m} / \mathrm{s}^{2} \).
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