Two small and heavy sheres, each of mass M, are placed at a distance r apart on a horizontal surface. The gravitational potential at the midpoint on the line joining the centre of the spheres is:

Two small and heavy sheres, each of mass M, are placed at a distance r

1.	Two small and heavy sheres, each of mass M, are placed at a distance r apart on a horizontal surface. The gravitational potential at the midpoint on the line joining the centre of the spheres is:
Answer» zero `-(GM)/(r)` `-(2GM)/(r)` `-(4GM)/(r)` SOLUTION :Gravitational potential at O DUE to MASS M at A = `-(GM)/(r//2)=-(2GM)/(r)` Gravitational potential at O due to mass M at `B=-(GM)/(r//2)=-(2GM)/(r)` `therefore` TOTAL gravitational potential at `O=-(4GM)/(r)`