A power operated hydraulic sprayer operating at a pressure of $1.4 \mathrm{MPa}$ has a boom with 11 nozzles spaced at $0.3 \mathrm{~m}$ interval. The input power of the pump is $1.5 \mathrm{~kW}$ and its mechanical efficiency is $75 \% .$ If the nozzle diameter and the discharge coefficient are $2.4 \mathrm{~mm}$ and $0.5,$ respectively, the average jet velocity of the nozzles in $\mathrm{m} \mathrm{s}^{-1}$ is__________________

A power operated hydraulic sprayer operating at a pressure of $1.4 \mathrm{MPa}$ has a boom with 11 nozzles spaced at $0.3 \mathrm{~m}$ interval. The input power of the pump is $1.5 \mathrm{~kW}$ and its mechanical efficiency is $75 \% .$ If the nozzle diameter and the discharge coefficient are $2.4 \mathrm{~mm}$ and $0.5,$ respectively, the average jet velocity of the nozzles in $\mathrm{m} \mathrm{s}^{-1}$ is__________________

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