A rectangular plan surface 5 m wide and 7 m deep lies in water in such – McqOptions

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1.	A rectangular plan surface 5 m wide and 7 m deep lies in water in such a way that its plane makes an angle 60‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ª with the free surface of water. Determine the total pressure force when the upper edge is 3 m below the free surface.$
A.	311.15 N/cm<sup>2</sup>
B.	622.3 N/cm<sup>2</sup>
C.	155.5 N/cm<sup>2</sup>
D.	None of the mentioned
Answer» B. 622.3 N/cm<sup>2</sup>

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