`(n - 1)` equal point masses each of mass `m` are placed at the vertices of a
Channel: Doubtnut
Date: 2020-08-02

`(n - 1)` equal point masses each of mass `m` are placed at the vertices of a angular n-polygon. The vacent vertex has `a` position vector `a` with respect to the centre of the polygon. Find the position vector of centre of mass.