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In Fig P2.71 gate AB is 3 m wide into the paper and is connected by a rod and pulley to a concrete sphere (SG

In Fig P2.71 gate AB is 3 m wide into the paper and is connected by a rod and pulley to a concrete sphere (SG = 2.40). What sphere diameter is just right to close the gate?

Concrete phere SG 2.4 6 m TD 4 m Water

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The centroid of AB is 10 m down from the surface hence the hydrostatic force is FhcGA 97901... blur-text-image

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