What is the difference between center of mass and center of gravity?
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Center of gravity and center of mass
What is the center of gravity?
The point through which the gravitational force acting on each particle of an object passes is called the center of mass of the object. Relatively speaking, this point is identified as the mass carrier of the entire object.
For example, we can assume that the mass of a balanced marble is concentrated at its center. So the center of the marble is its center of mass. But nothing in our real world is perfectly balanced. Therefore, if we consider their center as their center of mass, it will not be correct. If we can determine the center of mass by balancing the mass of the entire object, we can assume that point as the true center of mass. But that point is almost impossible to determine with certainty.
What is the center of gravity?
When the gravitational acceleration is multiplied by the mass of an object, we call it force or weight. Another name for this weight is weight. So weight is actually just a manifestation of force. Like the center of mass, an object also has a center of gravity. Since the weight depends on the gravitational acceleration of the Earth, the center of mass also depends on the line connecting the center of the Earth to the object on the Earth’s surface.