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Ok there is a dam of width "b" and a liquid is filled on one side of it to a height h. Now I need to calculate the force on the wall of the barrier on the side where the liquid is filled. I considered a small layer of liquid of dx (vertical) at a distance x from top of liquid surface. Then:
Therefore the force on the barrier depends on:
Now suppose I want to calculate force due to liquid in a cuboid lying horizontally on floor. It's length is l breadth is b and height h ... now if it lies on floor with breadth as its height...then it means as per previous conclusion that length of the cuboid lying horizontally wouldnt make any difference...So this means I keep on increasing its length without any effect on force due to liquid on the front face?
Answerr: WRONG!
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