Question: Gate ABC in Fig. P2.79 is 1-msquare and hinged at B. It opens automatically when the water level is high enough. Neglecting atmospheric pressure, determine

Gate ABC in Fig. P2.79 is 1-msquare and hinged at B. It opens automatically when the water level is high enough. Neglecting atmospheric pressure, determine the lowest level h for which the gate will open. Is your result independent of the liquid density?

Water A 60cm C 40 cm

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