Physics Question from JEE Main 2023 · 10 April, Shift 2

If the maximum load carried by an elevator is $1400 \, \text{kg}$ ($600 \, \text{kg}$ - Passengers + $800 \, \text{kg}$ - elevator), which is moving up with a uniform speed of $3 \, \text{m s}^{-1}$ and the frictional force acting on it is $2000 \, \text{N}$, then the maximum power used by the motor is _____ $\text{kW}$ ($g = 10 \, \text{m/s}^2$).