An underwater survey vehicle moves along a straight flooded tunnel. East is chosen as the positive direction.
The table gives the velocity of the vehicle at three times.
| Record | Velocity |
|---|---|
| P | −1.8 m s−1-1.8\ \mathrm{m\,s^{-1}}−1.8 ms−1 |
| Q | −3.2 m s−1-3.2\ \mathrm{m\,s^{-1}}−3.2 ms−1 |
| R | −4.6 m s−1-4.6\ \mathrm{m\,s^{-1}}−4.6 ms−1 |
A student claims that the vehicle has a lower speed in record Q than in record P because its velocity is more negative.
Evaluate the student's claim.
Explain how the speed and velocity of the vehicle change from record Q to record R.