KEAM 2020 Physics and Chemistry Solved Paper

Question : 2 of 120

Marks: +1, -0

Four particles of masses m1=1‌kg,m2=2‌kg,m3=1‌kg and m4 are placed at thefour comers of a square. The mass m4 required, so that the centre of mass of all the four particles is exactly at the centre of the square is