Linear velocity of a satellite equals
Where G(Gravity constant) = 6.67 × 10^-11m³/kg-sec, M = mass of earth, r = radius of circular orbit

A. $$\frac{{{\text{GM}}}}{{\text{r}}}{\text{m/s}}$$

B. $$\sqrt {\frac{{{\text{GM}}}}{{\text{r}}}} {\text{m/s}}$$

C. $$\frac{{\text{G}}}{{{\text{Mr}}}}{\text{m/s}}$$

D. $$\frac{{\sqrt {{\text{GM}}} }}{{\text{r}}}{\text{s/m}}$$

Answer: Option B