A satellite revolves in a circular orbit...

A satellite revolves in a circular orbit at a height of`1.6 × 10^6` m above the surface of earth earth's radius is `6.4 × 10^6` m. then the orbital speed of the satellite will be nearly `(g = 9.8 m/s^2)`

5 km/s

7 km/s

9 km/s

11 km/s

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