apply balance momentum and Newton 2nd law to demostrate this equation (pls explain how they get (cos @+1))

flow. Method By measurement of the forces produced by a jet impinging on solid surfices which produce different degrees of flow defleetion. Equipment In order to complete the demonstration we need a number of pieces of equipment. - The Fl-10 Hydraulics Bench which allows us to mensure flow by timed volume collection. - The F1-16 Impact of Jets Apparatus with 4 flow deflectors, having deflection angle of 30,90,120 and 180 degrees. - A stopwatch to allow us to determine the flow rate of water (not supplied). Technical Data The following dimensions from the equipment are used in the appropriate calculations. If required these values may be checked as part of the experimental procedure and replaced with your own measurements. Diameter of nozzle d=0.008 m bence Cross sectional area of nozzle A=5.0265105 Theory The velocity of fluid, v, leaving the nozzle of cross-sectional area, A, is given by v=AQtV=td It is assumed that the magnitude of the velocity (ie. speed) does not change as fluid flows around the deflector, and that only its direction changes. Application of Newton's 2nd law to the deflected flow gives the result: Fy=Qmv(cos+1) where Fy= force exerted by deflector on fluid. and Qm= mass flow rate and 8