A car moves in a straight line on a level road. The driver pushes down on the accelerator to make the car go faster. The speed-time graph for the car is shown. What is the acceleration of the car?
- A$0.50\ \text{m s}^{-2}$
- B$1.00\ \text{m s}^{-2}$
- C$1.50\ \text{m s}^{-2}$
- D$2.00\ \text{m s}^{-2}$