# Centre of Mass

The balance point of an object. The location in an object that has the same translational motion as the object if it were shrunk to a point.

**Laminar Triangle**of height*h*- Distance
*d*is perpendicular from the base.

**Solid Hemisphere**of radius*r*- Distance
*d*is from the centre of the sphere.

**Hemispherical Shell**of radius*r*- Distance
*d*is from the centre of the sphere.

**Sector of Disc**of radius*r*and angle*2θ*- Distance
*d*is from the centre of the disk.

**Arc of a Circle**of radius*r*and angle*2θ*- Distance
*d*is from the centre of the circle.

**Solid Cone or Pyramid**of height*h*- Distance
*d*is perpendicular from the base.

**See also: **Mass.

**Subjects: ** Mechanical Engineering Physics