For safety of a concrete dam against overturning, what must be width of the dam of rectangular cross section of height 10 m, if the height of water storage on one side of it is 9 m? Take unit weight of water as 10 kN/m3 and unit weight of concrete as 25 kN/m3.(Ignore effect of uplift, friction and any other force)

For safety of a concrete dam against overturning, what must be width o

1.	For safety of a concrete dam against overturning, what must be width of the dam of rectangular cross section of height 10 m, if the height of water storage on one side of it is 9 m? Take unit weight of water as 10 kN/m3 and unit weight of concrete as 25 kN/m3.(Ignore effect of uplift, friction and any other force)
A.	\(\dfrac{4\sqrt{3}}{5} \ m\)
B.	\(\dfrac{3\sqrt{3}}{5} \ m\)
C.	\(9\dfrac{\sqrt{3}}{5} \ m\)
D.	0.6 m
Answer» D. 0.6 m

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