A coach and its driver complete two test runs on the same road in the same weather conditions. The coach travels at the same speed in both runs.
| Test | Speed in m/s\mathrm{m/s}m/s | Thinking distance in m\mathrm{m}m | Stopping distance in m\mathrm{m}m |
|---|---|---|---|
| A | 15 | 8 | 33 |
| B | 15 | 12 | 33 |
Which statement about the brakes in test B could explain these results?
The braking force was smaller in test B.
The brakes in test B took longer to apply.
The braking force was greater in test B.
The braking force was unchanged in test B.