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» `hati+hatj` `(1)/(2)(hati+hatj)` `hati-hatj` `(1)/(2)(hati-hatj)` ANSWER :B