John carried out an experiment to find out how different surfaces (P, Q, R and S) affect the braking efficiency of a car traveling at 50 km/h. The results are shown below. Type of road surfacesPQRSStopping distance18 m15 m19 m27 m Which type of road will provide the most friction for the car to stop?

John carried out an experiment to find out how different surfaces (P,

1.	John carried out an experiment to find out how different surfaces (P, Q, R and S) affect the braking efficiency of a car traveling at 50 km/h. The results are shown below. Type of road surfacesPQRSStopping distance18 m15 m19 m27 m Which type of road will provide the most friction for the car to stop?
Answer» John carried out an experiment to find out how different surfaces (P, Q, R and S) affect the braking efficiency of a car traveling at $50 k m / h$ . The results are shown below. $\begin{matrix} Type of road surfaces & P & Q & R & S Stopping distance & 18 m & 15 m & 19 m & 27 m \end{matrix}$ Which type of road will provide the most friction for the car to stop?