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PPT: Center of Gravity & Centroid | Engineering Mechanics - Civil Engineering (CE) PDF Download

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Centroid and Centre of Gravity 
Centroid Center of Gravity 
• It is defined as a point about 
which the entire line, area or 
volume is assumed to be 
concentrated. 
• It is related to distribution of 
length, area and volume. 
• It is defined as a point about 
which the entire weight of the 
body is assumed to be 
concentrated. 
• Center of mass. 
• It is related to distribution of 
mass. 
 
Page 2


Centroid and Centre of Gravity 
Centroid Center of Gravity 
• It is defined as a point about 
which the entire line, area or 
volume is assumed to be 
concentrated. 
• It is related to distribution of 
length, area and volume. 
• It is defined as a point about 
which the entire weight of the 
body is assumed to be 
concentrated. 
• Center of mass. 
• It is related to distribution of 
mass. 
 
Examples 
Page 3


Centroid and Centre of Gravity 
Centroid Center of Gravity 
• It is defined as a point about 
which the entire line, area or 
volume is assumed to be 
concentrated. 
• It is related to distribution of 
length, area and volume. 
• It is defined as a point about 
which the entire weight of the 
body is assumed to be 
concentrated. 
• Center of mass. 
• It is related to distribution of 
mass. 
 
Examples Examples 
Page 4


Centroid and Centre of Gravity 
Centroid Center of Gravity 
• It is defined as a point about 
which the entire line, area or 
volume is assumed to be 
concentrated. 
• It is related to distribution of 
length, area and volume. 
• It is defined as a point about 
which the entire weight of the 
body is assumed to be 
concentrated. 
• Center of mass. 
• It is related to distribution of 
mass. 
 
Examples Examples Examples 
Page 5


Centroid and Centre of Gravity 
Centroid Center of Gravity 
• It is defined as a point about 
which the entire line, area or 
volume is assumed to be 
concentrated. 
• It is related to distribution of 
length, area and volume. 
• It is defined as a point about 
which the entire weight of the 
body is assumed to be 
concentrated. 
• Center of mass. 
• It is related to distribution of 
mass. 
 
Examples Examples Examples Examples 
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FAQs on PPT: Center of Gravity & Centroid - Engineering Mechanics - Civil Engineering (CE)

1. What is the center of gravity?
Ans. The center of gravity is the point at which an object's total weight is considered to be concentrated. It is the average position of all the particles that make up the object.
2. How is the center of gravity determined?
Ans. The center of gravity of an object can be determined by finding the balance point, where the object will remain in equilibrium. This can be done by suspending the object and observing where it balances.
3. What is the significance of the center of gravity in physics?
Ans. The center of gravity is a crucial concept in physics as it helps in predicting how an object will behave under different conditions. It determines the stability, balance, and equilibrium of objects.
4. How does the center of gravity affect the stability of an object?
Ans. The lower the center of gravity of an object, the more stable it is. When the center of gravity is higher, the object becomes less stable and is more likely to topple over.
5. How does the concept of center of gravity differ from the centroid?
Ans. The center of gravity refers to the average position of an object's weight, while the centroid refers to the average position of an object's volume or shape. The center of gravity is specific to objects with weight, whereas the centroid can be applied to any object with a defined shape.
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