Question

Three identical spheres each of mass M are placed at the corners of an equilateral triangle of side 2m. Taking one of the corners as the origin, the position vector of the centre of mass is
(a) i + 1.732 j
(b) 1.732 i + j
(c) i + 0.577 j
(d) 0.577 i + j

Answer 1

i+ 0.577 j ...................