A rectangular surface 3′ × 4′, has the lower 3 edge horizontal an – McqOptions

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1.	A rectangular surface 3′ × 4′, has the lower 3 edge horizontal and 6′ below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is (where, y = specific weight of water) ?
A.	39.6y
B.	39.6y
C.	49.2y
D.	58y
Answer» C. 49.2y

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