Four particles, each of mass 1kg, are placed at the corners of a square OABC of side 1m. 'O' is at the origin of the coordinate system. OA and OC are aligned along positive x-axis and positive y-axis respectively. The position vector of the centre of mass is (in 'm')

Four particles, each of mass 1kg, are placed at the corners of a squar

1.	Four particles, each of mass 1kg, are placed at the corners of a square OABC of side 1m. 'O' is at the origin of the coordinate system. OA and OC are aligned along positive x-axis and positive y-axis respectively. The position vector of the centre of mass is (in 'm')
Answer» `HAT(i)+hat(j)` `(1)/(2)(hat(i)+hat(j))` `(hat(i)-hat(j))` `(1)/(2)(hat(i)-hat(j))` Answer :B