A jet of water is flowing through a nozzle and hits a revolving flat surface shown below. The flow rate and flow velocity of the flowing water is 35kg/s and 8m/s respectively. Calculate the force R to hold the flat surface. Hinge 2.5 m 1.5 m 30° R

H.W. 6.32 Q: in a (45°) bend a rectangular air duct of (1) m² cross-sectional area is gradually reduced to (0.5) m² area. Find the magnitude and direction of the force required to hold the duct in position if the velocity of flow at (1) m² section is (10) m/s and pressure is (2.943) N/cm². Take density of air as (1.16) kg/m³. 66

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