Question

Find the potential energy of a system of four particles placed at the vertices of a square of side l. Also obtain the potential at the centre of the square ​

Answer 1

potential energy = GX M X m/(R+h)

for 4 particles,

E= G X M X m/[{2+(R+h)} + {2/R + I + h}]

if particle is at centre of square

E= (G X M X m)/( R + h + 0.5 X I)