+1 vote
in Fluid Mechanics by (118k points)
Determine the centre of pressure on an isosceles triangle plate of base 6m and altitude 6m when it is immersed vertically in an oil of specific gravity 0.75. The base of the plate coincides with the free surface of oil.

(a) 6 m

(b) 3 m

(c) 9 m

(d) 12 m

This question was addressed to me during an internship interview.

This is a very interesting question from Total Pressure & Vertical Plane Surface Submerged in a Liquid topic in chapter Hydrostatic Forces on Surfaces of Fluid Mechanics

1 Answer

+2 votes
by (362k points)
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Best answer
The correct option is (b) 3 m

To explain I would say: ŷ=I/Aĥ + ĥ

                       I=bh³/36

                      ŷ=36*2/18 + 2

                        =3 m.

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