Cement centre of gravity, Lecture notes of Civil Engineering

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Centre of Gravity: C.G. of a body is defined as the point through which resultant of the gravitational force i.e weight, acts for any orientation of the body. Or Centre of Gravity (C.G.) is that point through which the resultant of a system of parallel forces formed by the weights of all particles of the body passes. In other words, the point through which the whole weight of the body acts is known as centre of gravity. It depends upon the shape of the body and may or may not necessarily be within the boundary of the body. 1. A body has only one C.G. 2, Its location doesn’t change even with a change in the orientation of the solid body. 3. It lies in a plane of symmetry, if any of a body. 4. It is an imaginary point. Centroid :-The plane figures (like triangle, quadrilateral, circle, trapezoid, etc.) have only areas but no mass. The centre of area of such figure is known as centroid. It is also called the geometrical centre or the centre of gravity. e Derivation for Centre of Gravity Scanned by CamScanner