Q9) a) A jet of fresh water 50 mm diameter issues under a head of 24.4 m and strikes a fixed flat plate
Find the force exerted on the plate when
(i) the plate is perpendicular; (4)
(ii) The plate is inclined at 30 degrees to the axis of the jet. (2)
(b) Oil of density 900 kg/m3 flow through a pipe from point A and to a point B.
At point A the diameter is 125 mm and the pressure is 160 kPa and at point B, which is 2 m below, the diameter is 250 mm and pressure is 210 kPa.
Determine EACH of the following:
(i) The velocity of the oil at point A; (8)
(ii) The mass flow rate of the oil. (2)
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