Water is discharged at a flow rate of \(0.3 \mathrm{~m}^{3} / \mathrm{s}\) from a narrow slot in a \(200-\mathrm{mm}\)-diameter pipe. The resulting horizontal twodimensional jet is \(1 \mathrm{~m}\) long and \(20 \mathrm{~mm}\) thick, but of nonuniform velocity; the velocity at location (2) is twice that at location (1). The pressure at the inlet section is \(50 \mathrm{kPa}\) gage. Calculate

(a) the velocity in the pipe and at locations (1) and (2) 

(b) the forces required at the coupling to hold the spray pipe in place. Neglect the mass of the pipe and the water it contains.

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Q=0.3 m D = 200 mm Thickness, 20 mm = P4.84 V = 2V1