What is the centre point of gravity?

THE WHOLE WEIGHT OF A BODY CONCENTRATED AT ONE POINT THAT IS CALLED "CENTERE POINT OF GRAVITY".

Approved

IT IS THE CENTRE OF MASS i.e WHERE THE ENTIRE MASS IS SAID TO BE CONCENTRATED

1.CG The point in or near a body at which the gravitational potential energy of the body is equal to that of a single particle of the same mass located at that point and through which the resultant of the gravitational forces on the component particles of the body acts.

2. The point of greatest importance, interest, or activity: "The center of gravity for the English language is no longer Britain. American English is the greatest influence on English everywhere" (Robert W. Burchfield).

Animaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought
to be at that point.It is a point where the gravity acts.

This child''s toy uses the principles of center of mass to keep balance on a finger.

In physics, the center of mass, of a distribution of mass in space is the unique point where the weighted relativeposition of the distributed mass sums to zero. The distribution of mass is balanced around the center of mass and the average of the weighted position coordinates of the distributed mass defines its coordinates. Calculations in mechanics are simplified when formulated with respect to the center of mass.

In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the case for hollow or open-shaped objects, such as a horseshoe. In the case of a distribution of separate bodies, such as the planets of the Solar System, the center of mass may not correspond to the position of any individual member of the system.

The center of mass is a useful reference point for calculations in mechanics that involve masses distributed in space, such as the linear and angular momentum of planetary bodies and rigid body dynamics. In orbital mechanics, the equations of motion of planets are formulated as point masses located at the centers of mass. The center of mass frame is an inertial frame in which the center of mass of a system is at rest at with respect the origin of the coordinate system.