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Title: Centre of gravity of plain and solid objects
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
...
The centre of area of such figures is known as centroid
...

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
...
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