Centre of Gravity

A point so situated with respect to any particular body, that the resultant of the parallel attracting forces between the earth and the several molecules of the body always pa es through it. These are resultants of the relative moments of the molecules. If a body is suspended, as by a string, the centre of gravity always lies vertically under its point of suspension. By two trials the point of intersection of plumb lines from the point of suspension being determined the centre of gravity is known. The vertical from the point of support coincides with the line of direction.