Theory Test. How to work out the stopping distances.

Stopping distances theory test

The UK theory test involves questions on stopping distances. An easy way for how to remember the overall stopping distances are as follows. When asked for a stopping distance, simply remember the 2 / 2.5 / 3 / 3.5 / 4 / 4.5 from below to work out the overall stopping distance.

Speed (mph)      Braking distance     Stopping distance
20                     x2                           = 40 feet
30                     x2.5                        = 75 feet
40                     x3                           = 120 feet
50                     x3.5                        = 175 feet
60                     x4                           = 240 feet
70                     x4.5                        = 315 feet

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