Find Center of Mass of an Object With a Hole | Physics & Engineering

Learn how to deal with a cutout in an object when finding the center of gravity or center of area of that object. Whether you are looking for the center of gravity, center of mass, center of area or centroid of an object it is important to know how to deal with an object that has had some material removed.

This topic comes up in introductory physics courses including AP Physics 1 AP Physics C Mechanics, A level physics and appears on the JEE. It also appears in engineering courses such as PLTW POE aka Project Lead the Way Principles of Engineering

[stephaniexx]

lovely explanation, thank you so much

[aamirbasha]

But how to find the "position" of the objects? Is it the centroid of the objects? Example, in your video the position of the circle cut is at the centroid of the circle, but say it was a semi circle, or a trapezium where is the position of that object? is it at the centroid of the object?

[tianiakukula]

How about the height of the block in consideration to the cg?