He measured flow rate of water through a 20 mm diameter pipe is 75 l/min. what is the average velocity (in m/s) of water flowing through the pipe

Average velocity of water flow through the pipe = 3.98 m/s

Explanation:

Diameter of pipe = 20 mm

Discharge = 75 L/min

We know that

        Discharge = Area x Velocity

       Discharge = 75 L/min

Substituting

Average velocity of water flow through the pipe = 3.98 m/s

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