Centre of Gravity: Explaining Concepts & Examples

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SUMMARY

The discussion centers on the concept of the Center of Gravity (CG) and its behavior in various objects. It is established that in homogeneous objects, the CG is located at the geometric center, while in non-homogeneous objects, the CG shifts toward the region of greater mass. The textbook reference highlights that the CG can exist outside the physical boundaries of an object, which is exemplified in cases like a bent homogeneous-density rod forming a C-shape or circle. This bending alters the distribution of mass, affecting the CG's position.

PREREQUISITES
  • Understanding of basic physics principles, particularly mechanics.
  • Familiarity with the concept of mass distribution.
  • Knowledge of geometric shapes and their properties.
  • Basic grasp of how physical objects can deform and affect their center of mass.
NEXT STEPS
  • Research the mathematical calculations for determining the Center of Gravity in irregular shapes.
  • Explore real-world applications of CG in engineering, such as in bridge design or vehicle stability.
  • Learn about the effects of mass distribution on the stability of structures.
  • Investigate the implications of CG in sports science, particularly in athletic performance and equipment design.
USEFUL FOR

Students of physics, engineers, and anyone interested in understanding the principles of mechanics and mass distribution in physical objects.

bionut
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Hi, I am just wondering if someone can help explain a concept of CG:

I understand that in a homogeneous object the CG is in the geometric centre

In a object without a constant mass, the CG will be towards the end with the greater mass

But it say in my textbook that: "It is also possible for the CG to be located physically outside of the object."

But how does this occur? Could you mabey give an example of application??

Thanks
 
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What would happen to the CG if you took a homogenous-density rod and bent it into a c-shape or circle?
 
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