Two identical satellites are at R and 7R away from earth's surface, the wrong statement is (R= radius of the earth)

A body is projected vertically upwards from the surface of earth with a velocity sufficient enough to carry it to infinity. The time taken by it to reach height $h$ is $\underline{ }$ $S.$

Given below are two statements:

Statement I: If$E$be the total energy of a satellite moving around the earth, then its potential energy will be $\frac{ E}{2}$.

Statement II: The kinetic energy of a satellite revolving in an orbit is equal to the half the magnitude of total energy $E$.

In the light of the above statements, choose the most appropriate answer from the options given below.

Suppose two planets (spherical in shape) of radii $R$ and $2R,$ but mass $M$ and $9M$ respectively have a centre to centre separation $8R$ as shown in the figure. A satellite of mass $m$ is projected from the surface of the planet of mass $M$ directly towards the centre of the second planet. The minimum speed $v$ required for the satellite to reach the surface of the second planet is $\sqrt{\frac{\mathrm{a}}{7}\frac{\mathit{G}\mathit{M}}{\mathit{R}}}$, then the value of  $a$ is
[Given : The two planets are fixed in their position]