When is the gravitational pull of earth canceled by the moon's gravity?

Answer 1

The Moon does not just go around the Earth. In reality, the two objects orbit about a common gravitational midpoint, called a barycenter. The mass of each object and the distance between them dictates that this barycenter is inside Earth, about three-fourths of the way out from the center.

Answer 2

The point between the Earth and Moon where the gravitational pulls of the Earth and Moon exactly cancel each other is located at a point about 90% of the way from the center of the Earth to the center of the Moon. The gravitational center of the Earth/Moon system is called the barycenter and it is located about a thousand miles (1707 Km) inside the earth towards the Moon (it moves as the Moon moves along its orbit).

Answer 3

The gravitational pull of Earth is not completely canceled by the Moon's gravity at any point. However, there are points called Lagrange points (specifically, L1 and L2) where the gravitational forces of Earth and the Moon partially cancel out, creating relatively stable regions in space where objects can maintain their position with minimal effort.

Answer 4

Gravitation follows an inverse square law, so a gravitational field while eventually small enough to be negligible will never be non-existent.