What is meant by superposition of gravitational field?

Explanation

The total gravitational field at a point due to all the masses is given by the vector sum of the gravitational field due to the individual masses. This principle is known as superposition of gravitational fields.
`vecE_("total") = vecE_(1) + vecE_(2) + ... vecE_(n) = - (Gm_(1))/(r_(1)^(2)) hatr_(1) - (Gm_(2))/(r_(2)^(2)) hatr_(2) - ... (Gm_(n))/(r_(n)^(2)) hatr_(n)`
`vecE_("total") = sum_(i=1)^(n) (Gm_(n))/(r_(n)^(2)) hatr_(n)`