Physics Coursework - car braking investigation.

The first 200 words of this essay...

GCSE Additional Science

Centre devised assessment

P2 Topic 9 As Fast as You Can

Introduction

The stopping distance is the distance taken for the car to stop. It includes the distance that is travelled during the thinking time of the driver, (registering the need to stop, then moving the foot to the break pedal.) It also includes the braking distance; the distance travelled after the break is applied. The thinking distance will vary from person to person, as the braking distance will vary between cars. However, and average can be made. The overall stopping distance is calculated by adding together the thinking distance and the braking distance.

Analysis

Speed (mph)

Thinking Distance (m)

Braking Distance (m)

Overall stopping distance (m)

20

6

6

12

30

9

14

23

40

12

24

36

50

15

38

53

60

18

55

73

70

21

75

96

The graph shows a positive correlation in braking and thinking distances. The thinking distance line shows that when the speed is doubled,