A hydraulic system comprising of a pump and a single acting cylinder lifts $11 \mathrm{kN}$ load. The pump flow rate is $25 \mathrm{~L} \mathrm{~min}^{-1}$ and its overall efficiency is $80 \%$. The cylinder diameter is $80 \mathrm{~mm}$ and its efficiency is $90 \%$. If the pressure drop in the hydraulic circuit is $500 \mathrm{kPa}$, the power required to drive the pump in kW will be____________
A hydraulic system comprising of a pump and a single acting cylinder lifts $11 \mathrm{kN}$ load. The pump flow rate is $25 \mathrm{~L} \mathrm{~min}^{-1}$ and its overall efficiency is $80 \%$. The cylinder diameter is $80 \mathrm{~mm}$ and its efficiency is $90 \%$. If the pressure drop in the hydraulic circuit is $500 \mathrm{kPa}$, the power required to drive the pump in kW will be____________