Two satellites `S_(1)` and `S_(2)` are revolving around a planet in the opposite sense in coplanar circular concentric orbits. At time t = 0, the satellites are farthest apart. The periods of revolution of `S_(1)` and `S_(2)` are 3 h and 24 h respectively. The radius of the orbit of `S_(1)` is `3xx10^(4)` km. Then the orbital speed of` S_(2)` as observed from

Options

A. the planet is `4pixx10^(4)` km `h^(-1)` when `S_(2)` is closest from `S_(1)`.
B. the planet is `2pixx10^(4)` km `h^(-1)` when `S_(2)` is closest from `S_(1)`.
C. `S_(1)` is `pi xx10^(4)` km `h^(-1)` when `S_(2)` is closest from `S_(1)`
D. `S_(1)` is `3pi xx10^(4)` km `h^(-1)` when `S_(2)` is closest from `S_(1)`

Answer

D