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in Fluid Mechanics by (118k points)
A beaker contains water up to a height of h. What will be the location of the centre of pressure?

(a) ^h⁄3 from the surface

(b) ^h⁄2 from the surface

(c) ^2h⁄3 from the surface

(d) ^h⁄6 from the surface

The question was posed to me during an online interview.

Question is from Hydrostatic Force on Plane Area topic in portion Hydrostatic Forces on Surfaces of Fluid Mechanics

1 Answer

+2 votes
by (362k points)
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Best answer
Right answer is (c) ^2h⁄3 from the surface

For explanation I would say: The depth of the centroid y and the centre of pressure yCP are related by:

where I = the moment of inertia and A = area. If y = ^h ⁄ 2; I = bh^3/12 ;A = bh, then

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