te 24 teet bung nd え나

Question

Question

Answer 1

Answer #1

Lets take a horizontal strip of width dh at depth h .

then length of that strip will be , L = 24 - [ (24-15)h/12 ]

L = 24 - 2h + 1.25h = 24 - 0.75h

Pressure at depth h, P = rho*g*h

Area = L dh = (24 - 0.75h)dh

Force of that strip = Pressure x area = rho*g*h(24 - 0.75h)dh

dF = rho*g*h(24 - 0.75h)dh .........Ans

where rho is density of water.

g = acc due to gravity

and h is from 0 to 12 feet.

F = rho*g [ 12h^2 - 0.25 h^3 ]

Answer 2

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