ch07-distributed-forces-centroids-and-centers-of-gravity

ighth
dition
Vector Mechanics for Engineers: Statics
Sample Problem 7.2
• Using vertical strips, perform a single integration
to find the first moments.
Q
Q
y
x
=
b
=
a
=
x
y
el
2
el
2
b
=
2a
dA =
x
4
4
4
5
x
5
a
0
dA =
a
0
xydx
2
=
a b
=
4
2
ab
=
10
a
0
y
ydx =
2
b
x a
a
0
1
2
2
a
b
x
2
2
x
dx
2
2
dx
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