Four particles of mass 1kg, 2kg, 3kg , 4kg are placed at the vertices of square of side 1m. The magnitude of force on 1kg mass is

Forces on 1 kg at ‘A’ isF3=G(1)(3)(2)2=3G2F1=G(1)(2)(1)2=2GF2=G(1)(4)(1)2=4GAlong ‘x’ direction;  F1=F1+F3cos450 F1=2G+3G22Along ‘y’ direction  F1=F2+F3sin450  =4G+3G22Resultant force at ‘A’ is F=F12+F112=2G+3G222+4G+3G222