A boy takes 5 seconds to reach each point from A to B, B to C and C to D as shown in the diagram. If AB = BC = CD = 20 m then which of the following information is correct when the boy reaches point D from point A?
| Velocity (m s-1) | Speed (m s-1) | |
| A | 4 | 4 |
| B | 1.33 | 1.33 |
| C | 4 | 1.33 |
| D | 1.33 | 4 |