Position-time graph for constant Acceleration
`x_f = v_it + 1/2 at^2`
`a = 0.5 m//s^2`
| Time | Velocity | displacement |
| `0` | `0` | `0` |
| `1\ s` | `0.5\ m//s` | `0.25\ m` |
| `2\ s` | `1.0\ m//s` | `1.0\ m` |
| `3\ s` | `1.5\ m//s` | `2.25\ m` |
| `4\ s` | `2.0\ m//s` | `4.0\ m` |
`x_f = x_i + v_it + 1/2 at^2`
