An underwater gate is 1.1 m wide (dimension into the page) and is pivoted about the point P, which is 0.8 m above the bo

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An Underwater Gate Is 1 1 M Wide Dimension Into The Page And Is Pivoted About The Point P Which Is 0 8 M Above The Bo 1 (16.51 KiB) Viewed 46 times

An underwater gate is 1.1 m wide (dimension into the page) and is pivoted about the point P, which is 0.8 m above the bottom. In its closed position the gate rests at an angle of 45: as shown on Figure 8.4. Determine the mass that must be placed at the lower edge of the gate Q so that the gate opens when the water to the left of it has reached a depth of 2 m. The gate may be assumed rigid but effectively massless. air water 0.8 m