Fig. 2.1 shows the thinking distance and the braking distance for a car driven at 100km/h. The car has old, smooth tyres. [Figure 2.1]

1. (a)Calculate the total stopping distance for the car.[1]
2. (b)(i)The car is now fitted with new tyres. At a speed greater than 100km/h, the total stopping distance is the same as in (a). State and explain the effect that the increase in speed and the use of new tyres have on the thinking distance. effect explanation[2]
3. (b)(ii)State and explain the effect that the increase in speed and the new tyres have on the braking distance. effect explanation[2]

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