A circular opening of 'd' m diameter in a vertical side of tank is closed by disc of 'd' m diameter. Calculate the force on disc if head of water above horizontal diameter is 4 m :

\(\rho g\frac{\pi }{4}{d^2}\;\)

\(3\rho g\frac{\pi }{4}{d^2}\;\)

A circular opening of 'd' m diameter in a vertical side of tank is clo

1.	A circular opening of 'd' m diameter in a vertical side of tank is closed by disc of 'd' m diameter. Calculate the force on disc if head of water above horizontal diameter is 4 m :
A.	\(\rho g\frac{\pi }{4}{d^2}\;\)
B.	\(3\rho g\frac{\pi }{4}{d^2}\;\)
C.	2ρgπd2
D.	ρgπd2
Answer» E.

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A circular opening of 'd' m diameter in a vertical side of tank is closed by disc of 'd' m diameter. Calculate the force on disc if head of water above horizontal diameter is 4 m :

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