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patricio ramos

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- Homework Statement
- A 6-m-high, 5-m-wide rectangular plate blocks the end

of a 5-m-deep freshwater channel, as shown in Fig. P3–75.

The plate is hinged about a horizontal axis along its upper edge

through a point A and is restrained from opening by a fixed ridge

at point B. Determine the force exerted on the plate by the ridge.

- Relevant Equations
- P = pgh

F = PA

Once I get the pressure, do I have to multiply times de area that is submerged (in this case it would be 25m^2), or do I take the whole area of the plate, including the part that is not submerged (in this case it would be 30 m^2)

Thanks

Thanks