A car with mass $1000\,\text{kg}$ is moving downhill on a very steep slope. Its brakes fail, so the driver uses a horizontal safety road filled with sand to bring the car to a halt. The car reaches the sand at a speed of $10\,\text{m s}^{-1}$ and is acted on by a constant stopping force of $2500\,\text{N}$. How far does the car move through the sand before it stops?
- A$2.0\,\text{m}$
- B$4.0\,\text{m}$
- C$20\,\text{m}$
- D$40\,\text{m}$