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Homework Statement
Determine the total force the water exerts on a cylindrical bent dam, with radius 250m and the opening angle of 50 degrees. The deep of the water is 70m
Homework Equations
The Attempt at a Solution
F = p_{c}A (1)
F_{x} = ρgζ_{cx}A_{x} (2)
ζ_{p}´ = ζ_{c}´ + I_{c}/(ζ_{c}´ * A) (3)
ζ_{p}' = ζ (4)
ζ_{cx} = h_{c} (5)
I got I_{c} = r*sinα/α (6) from physics handbook
I'm not sure if A = h∏r^2 is correct or if h_{c} = a/2 is correct (a is the height)
Is this right ? or is something missing ?
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