The diagram depicts a small car with mass $500\,\text{kg}$ travelling towards a hill. It climbs the hill at constant speed. The gravitational field strength $g$ is $10\,\text{N kg}^{-1}$. If friction is ignored, how much work is done in raising the car up the hill?
- A$5.0 \times 10^3\,\text{J}$
- B$5.0 \times 10^4\,\text{J}$
- C$1.0 \times 10^5\,\text{J}$
- D$1.0 \times 10^6\,\text{J}$