Center of Mass and Center of Gravity | Physics

In this animated lecture I will teach you the concept of center of mass and center of gravity.

Q: What is center of mass?
Ans: The easiest definition of center of mass is that " The point at which mass is equally distributed in all directions is called center of mass" or "The point at which whole mass of the body is concentrated is known as center of mass". One can say that center of mass is the point where whole mass of the body appears.
For example, the center of mass of disc is at center. The center of mass of humans is at their naval.

Q: What is center of gravity?
Ans: Center of gravity is defined as "The point at which whole weight of an object appears to act in downward direction is called center of gravity". We know that weight is the force between the earth and any object. Due to which objects fall down.
As center of mass, weight of any object also acts at one single point, which is commonly known as center of gravity.
For example, center of gravity of square objects is at their geometric center.

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