The power of a crane, which lifts a mass of 1000 kg to a height of 20 m in 10 s is: (g=9.8 m / s^2)

The power of a crane, which lifts a mass of $\displaystyle 1000$ kg to a height of $\displaystyle 20$ m in $\displaystyle 10$ s is : $\displaystyle \left(\mathrm{g}=9.8 \mathrm{~m} / \mathrm{s}^2\right)$