A pipe, through which water is flowing, has diameters \(30 \mathrm{~cm}\) and \(15 \mathrm{~cm}\) at cross-sections 1 and 2 respectively. The discharge of the pipe is \(40 \mathrm{~L} / \mathrm{s}\). The cross-section 1 is \(8 \mathrm{~m}\) and cross-section 2 is \(6 \mathrm{~m}\) above the reference level. If the pressure at section 1 is 5 bars, determine the pressure at section 2 .