In a converging fluid flow device, as shown in the image below, water arrives through section 1 at a speed of 29 m/s and a pressure of 13.2 barg (gauge in bar). The pressure will drop until it reaches section 2, where the pressure gauge reads 4.9 bar. Assuming the tube is perfectly horizontal, what is the velocity of water, in m/s, in section 2?

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.