A car is traveling along a horizontal road at a speed of 18 m s-1. The driver has a reaction time of 0.70 s, after which the car decelerates at a constant rate of 6.0 m s-2 until it comes to rest.
If the initial speed of the car is increased by 50% to 27 m s-1, by how much does the total stopping distance increase?
19.8 m19.8\text{ m}19.8 m
33.8 m33.8\text{ m}33.8 m
40.1 m40.1\text{ m}40.1 m
49.5 m49.5\text{ m}49.5 m