A lift of mass M=500 kg is descending with speed of 2 ms^-1. Its supporting cable begins to slip thus allowing it to fall with a constant…

A lift of mass $\displaystyle M=500 \mathrm{~kg}$ is descending with speed of $\displaystyle 2 \mathrm{~ms}^{-1}$. Its supporting cable begins to slip thus allowing it to fall with a constant acceleration of $\displaystyle 2 \mathrm{~ms}^{-2}$. The kinetic energy of the lift at the end of fall through to a distance of $\displaystyle 6$ m will be $\displaystyle \_\_\_\_$ kJ.