Q2) A long solid cylinder of radius 1.2 m hinged at point A is used as an automatic gate, as shown in the following Figure. When the water level reaches 8 m, the gate opens by turning about the hinge at point A. Determine (a) the hydrostatic force acting on the cylinder and its line of action when the gate opens and (b) the weight of the cylinder per m length of the cylinder. 9/m³ Pwater = 1000 Kg/ IK 8m 1.2 m -S=6.8m o" R=1,2 m 8 Wol

Water flows through the branching pipe shown in the figure below. The flowrate at section (1) is Q₁ = 1.1 m³/s, and the velocity at section (2) is V₂ = 17 m/s. A₁ = 0.1 m² P1 = 300 kPa 21 = 0 P3 = -147.2 A3 = 0.035 m² Z3 = 10 m (1) (2) If viscous effects are negligible, determine the pressure at section (2) and the pressure at section (3). P2 = i 315.3 kPa kPa (3) A₂ = 0.03 m² 22 = 0