An upward force of $1000\ \text{N}$ is required to raise the crane hook at constant speed. The crane is then employed to raise a load with mass $1000\ \text{kg}$ at a speed of $0.50\ \text{m s}^{-1}$. What fraction of the power produced by the crane motor is devoted to lifting the hook and the load? Take the acceleration due to gravity $g$ to be $10\ \text{m s}^{-2}$.
- A$5.0\ \text{kW}$
- B$5.5\ \text{kW}$
- C$20\ \text{kW}$
- D$22\ \text{kW}$