The binding energy of a satellite of mass 1000 kg revolving in circular orbit around the earth when it is' close to the surface, of earth is `(G=6.67xx10^-11Nm^2//kg^2)`,

Options

A. a)`56km//sec`
B. b)`5.6m//sec`
C. c)`56m//sec`
D. d)`5.61km//sec`

Answer

D