Question

1. A gate is 30 cm high, 60 cm wide into the paper, and hinged at the top of the gate. The water depth h = 3 m.The gate is

closed by an air pressurized chamber.Compute the minimum air pressure to keep the gate closed. The density of water is 1000 kg/m³. Maintain atleast 2 decimal points in all calculations to get acceptable result.[20]

Fig: 1

Fig: 2