CONCEPT:Head loss due to FRICTION in a pipe:\({h_f} = \frac{{f'L{V^2}}}{{2gd}}\)f’ = Friction factor, L = Length of the pipe, V = average VELOCITY of the fluid in the pipe, g = Acceleration due to gravity, d = Diameter of the pipeCalculations:Given:f’ = 4f = 0.06 (f is friction coefficient), L = 9.81 m, V = 2 m/s, g = 9.81 m/s2, d = 1 m\({h_f} = \frac{{f'L{V^2}}}{{2gd}}=\frac{0.06~\times~9.81~\times~4}{2~\times~9.81~\times~1}\)hf = 0.12 m