__________________________________________
For center of mass
=> X cm = ( M*55.3 + M*178 ) /2M
               Â
= 116.65 km
For center of gravity
Gravitational Force , F1 = GMm/55.32
Gravitational Force , F2 = GMm/1782
=> Center of gravity = ( GMm/55.32 * 55.3 +
GMm/1782 * 178) / ( GMm/55.32 +
GMm/1782 )
                                  Â
= 66.1004
km                                            Â
=> distance b/w center of mass and center of
gravity =Â Â 116.65 km - 66.1004 km
                                                                                    =
50.55 km
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