A car with mass $850\text{ kg}$ is moving along a straight horizontal path. The diagram shows two horizontal forces acting on the car in opposite directions. One force has magnitude $1200\text{ N}$, while the other has magnitude $1600\text{ N}$. What is the magnitude of the car’s acceleration?
- A$0.47\text{ m s}^{-2}$
- B$1.4\text{ m s}^{-2}$
- C$1.9\text{ m s}^{-2}$
- D$3.3\text{ m s}^{-2}$