A plumbing system contains a junction with 4 pipes, as shown in the figure. Each pipe has a different mean velocityU1=55 cm/sA1=10 cm2U2=20 cm/sA2=30 cm2U3=−10 cm/sA3=40 cm2U4= ????A4=5 cm2Negative velocity indicates the fluid is moving out of the pipe.Find the mean velocity in pipe 4 (the answer should be negative if the flow out of the pipe). U, = 55 cm/sA2= 20 cm2A, = 10 cm2Uz = 30 cm/A4 = 5 cm2Uq = ??Az = 40 cm2Uz = -10 cm/s

Given data A1=10 cm2A2=20 cm2A3=40 cm2A4=5 cm2 Here, A represents the area of the different sections…

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