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John carried out an experiment to find out how different surfaces (P, Q, R and S) affect the distance a car travelling at 50 km/h needed to stop once the brakes are applied. The results are shown below. Type of road surfacesPQRSStopping distance18151927 Which type of road will provide the most friction for the car to stop ? |
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Answer» John carried out an experiment to find out how different surfaces (P, Q, R and S) affect the distance a car travelling at 50 km/h needed to stop once the brakes are applied. The results are shown below. |
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