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Find the hydrostatic force (in kN) actin...

Find the hydrostatic force (in kN) acting on the circular patch of radius ` R. (R = 1m, g = 10 m // s ^ 2 ` , atmospheric pressure `= 10 ^(5 ) Pa )

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The correct Answer is:
C
` F= (P_0 + rho_g Y_C) A `
where ` Y_C = 2R and A pi R ^ 2 `
or , ` F = [10 ^5 + (1000) (10) (2) ] pi = 120 pi kN = 377 kN `
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