Which of the following is a typical value for the speed of a car travelling on a motorway?
0.3 m s−10.3\text{ m s}^{-1}0.3 m s−1
3.0 m s−13.0\text{ m s}^{-1}3.0 m s−1
30 m s−130\text{ m s}^{-1}30 m s−1
300 m s−1300\text{ m s}^{-1}300 m s−1