A vertical sliding gate is being submerged in a 10 meter water. The gate is 5m wide and 9 m high and weighs 50 kN. What vertical force is needed to just lift this gate considering that the Coefficient of friction between the guides and edges is 0.25 (Neglect Buoyant Force) Ans: 657 kN Im th = 5.Sm 4.5m 4.5m

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