Point Mass and Extended Objects

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A point mass object is defined as having no size or shape, represented solely by its position in space, while an extended object has a definite, finite size and shape. The configuration of a point particle is simpler, focusing only on its location, whereas an extended object requires additional parameters, such as the position of its center of mass and its orientation. The concept of "degrees of freedom" is crucial in understanding the differences, as it highlights the additional factors involved in describing extended objects. This distinction is fundamental in physics, particularly in mechanics. Understanding these differences enhances comprehension of motion and forces acting on various objects.
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I'm afraid that I do not quite understand the difference between a point mass object and an extended object. The only definition that I have is that an extended object has a definite, finite size and shape. That doesn't tell me very much...

If someone could please tell me the difference between these two objects, I would greatly appreciate it. ^_^
 
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The configuration of
a point particle is described by its position in space...
a rigid extended object is described by the position of its center of mass and its orientation.

Think "degrees of freedom".
 
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ah, I get it now. Thank you.
 
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