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Title: Centre of gravity of plain and solid objects
Description: CENTRE OF GRAVITY INTRODUCTION
Description: CENTRE OF GRAVITY INTRODUCTION
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1
...
This point through which the whole weight of the body acts irrespective of the
position of the body, is known as centre of gravity (briefly written as c
...
It may
be noted that every body has one, and only one, centre of gravity
...
2 Centroid
The plane figures (like triangle ,quadrilateral ,circle etc
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The centre of area of such figures is known as centroid
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1
...
1
...
g of simple figures may be found out from the geometry of the figure
e
...
;
1
...
g of a uniform rod is at it’s middle point
l/2
D
A
C
F
b
A
B
B
D
l
Fig 1
...
2
C
2
...
g of a rectangle (or a parallelogram )is a point, where it’s diagonals meet each
other
...
1
3
...
g
...
2
Fig 1
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4
4
...
g
...
3
5
...
g
...
4
a
Gh
h b+2a
3 b+a
(
)
b
Fig 1
...
6
6
...
g
...
5
3 b+a
7
...
g
...
6
Title: Centre of gravity of plain and solid objects
Description: CENTRE OF GRAVITY INTRODUCTION
Description: CENTRE OF GRAVITY INTRODUCTION