Two heavy spheres each of masses 100 kg and radius 0.1 m are placed 1m apart on horizontal table. calculate the gravitational field intensity and the potential at the line joining the centre of spheres .
The situation is represented in the given figure:
Mass of each sphere, M = 100 kg
Separation between the spheres, r = 1m
X is the mid point between the spheres. Gravitational force at point X will be zero. This is because gravitational force exerted by each sphere will act in opposite directions.
Gravitational potential at point X: