A car travels at 54 km/h. The driver has a reaction time of 0.80 s and the braking distance is 18 m. Use 1 m/s=3.6 km/h1\ \mathrm{m/s}=3.6\ \mathrm{km/h}1 m/s=3.6 km/h. What is the stopping distance?
12 m12\ \mathrm{m}12 m
30 m30\ \mathrm{m}30 m
43.2 m43.2\ \mathrm{m}43.2 m
61.2 m61.2\ \mathrm{m}61.2 m