A motorcycle is travelling on a straight road with an initial speed of 18 m s-1. The table below shows some distance data for the stopping process:
| Distance / m\text{m}m | |
|---|---|
| Thinking distance | 11 |
| Braking distance | 30 |
| Stopping distance | 41 |
The motorcycle has a constant deceleration when the brakes are applied.
What is the magnitude of the deceleration of the motorcycle during braking?
4.0 m s−24.0\text{ m s}^{-2}4.0 m s−2
5.4 m s−25.4\text{ m s}^{-2}5.4 m s−2
11 m s−211\text{ m s}^{-2}11 m s−2
15 m s−215\text{ m s}^{-2}15 m s−2
