Every object has some mass, and the object weighs a certain amount due to gravitational force. There is a difference between the centre of gravity and centroid. Both depend on the factor of uniform or non-uniform distribution of mass across the body.
Difference between Centre of Gravity and Centroid
In an object, a centre of mass is referred to as the point where the whole object’s mass is focused, which means the point’s mass is represented as the whole object’s mass. The centre of gravity of any object is the point where gravity acts on the body.
On the other hand, the centroid is referred to as the geometrical centre of a uniform density object. This means the object has its weight distributed equally across all body parts. If the body is homogeneous (having constant density), its centre of gravity is equivalent to the centroid.
|Difference Between Centre of Gravity and Centroid|
|Centre of Gravity||Centroid|
|The point where the total weight of the body focuses upon||It is referred to as the geometrical centre of a body|
|It is the point where the gravitational force (weight) acts on the body||It is referred to the centre of gravity of uniform density objects|
|It is denoted by g||It is denoted by c|
|Centre of Gravity in a uniform gravitational field is the average of all points, weighted by local density or specific weight||The centroid is a point in a plane area in such a way that the moment of area about any axis throughout that point is 0|
|It is a physical behaviour of the object, a point where all the weight of an object is acting||It is a geometrical behaviour. It is the centre of measure of the amount of geometry.|
These were some differences between centre of gravity and centroid. If you wish to find out more, download BYJU’S The Learning App.
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