Find the head lost due to friction in a pipe of diameter 300 mm and length 50 m through which water flows at 3 m/s, using the Darcy formula. Take ν = 0.01 stoke and the coefficient of friction f′ = 0.079/Re^{1/4} (Bansal's form h_{f} = 4f′LV^{2}/(2gd)) (answer in m).