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By "uniformly distributed" I would assume you mean the object has constant density. So, taking that assumption, the answer is: no, not necessarily. IF and ONLY IF the object has constant density throughout AND it is symmetric about all three axes can you say its center of gravity (a.k.a, center of mass) is at its (geometric) center. But there are plenty of objects (the Earth) that do not have constant density, but the distribution of the density is symmetric (the earth's various layers form [nearly] spherical shells all sharing the same focus [centerpoint] of symmetry).

There are also many shapes I'm sure you can think of that can be constant density that are not symmetric and really require further analysis to determine their center of mass. A common example is an object having an "L" shape, where there are two "legs" of equal or different lengths. Try balancing something having that shape and find where the center of mass is by find where you can hold it on your fingertip and get it to balance. More than likely, the balancing point (since balancing implies a gravitational pull, then the term "center of gravity" is appropriate) won't be at the intersection of the two legs, but rather it will be offset inside the longer leg. Why? Because, even though the density (mass distribution) is constant, the longer leg contributes more to the overall mass.

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12y ago
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10y ago

For a symmetric body in all directions the center of mass is always located at its geometric center.

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12y ago

If the object is curved, the center of mass may lie outside the object. The center of mass for a ring, for example will lie in the middle of the open space encircled by the ring.

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Anonymous

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3y ago

yes

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Q: Is the center of mass always in the center?
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Related questions

What statement about Gravity is always true?

Objects will always be pulled to the center of the mass.


Does the center of gravity always lie on the body?

The center of gravity always lies within an object, and is the location at which the entire mass can be considered acting at a single point.For a system of more than one object, the center of gravity can lie anywhere between the farthest points of the objects, depending on the distribution of mass. The center of mass is called the barycenter.


Is the center of gravity is always in the body?

For a single body, the center of gravity (center of mass) must be within the object. It is the single point at which all of an object's mass can be considered to act. For multiple bodies in a system, the center of mass can fall within a body or anywhere between bodies. The joint center of mass is called the "barycenter."


Does the center of mass of an object ever differ from the center of gravity?

The center of mass and center of gravity serve two separate purposes. As an individual, your center of gravity and center of mass remains the same. The earth has a center of mass. The moon has a center of mass. The moon does not orbit the earth. They orbit their center of gravity. Their center if gravity is always changing. It is not a fixed point. When an airplane takes off, its center of gravity is one place. As it burns fuel, its center of gravity changes. It might be necessary to change its attitude, which today is done automatically by computers. The computers are checked at the end of the flight by human beings.


Does the mass of an object change as the distance from the center of gravity change?

No, because mass is the amount of matter contained in a body. So whatever may be the distance from the center of gravity it always remains the same.


Where is center of mass of a sphere?

The center of mass of a sphere is its geometric center.


Is the center of gravity of a meterstick always located at the 50-cm mark?

No, there should be an equal mass distribution to have its center of gravity at 50 cm mark


Where is the center of mass of a ball?

The center of mass of a soccer ball is its geometric center.


What is the relationship between center of mass and mass distribution?

Mass is uniformly distributed about its center of mass.


How do you maintain center of mass when mass is added?

The simplest answer is to add the mass at the center of mass. In that case, the total mass will increase, but not the center of mass. If the additional mass is not added at the center of mass, then it must be balanced with more mass at a location on the object that depends upon the object's shape. That's where things get complicated.


What is the distance from the center of earth to its center of mass?

The geometric center and the center of mass of the Earth are essentially the same point.


What is the center of the mass of an object?

the center mass of an object is in the center of such objects. you can find it by spining the object. :)