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The total distance travelled during the time it takes for a car to stop in response to some emergency. It can be written as an equation involving two distances: Stopping distance = Thinking distance + Braking distance. Where: Thinking distance = the distance travelled in the time it takes the driver to react (reaction time) in metres (m)
The driver spends a small period of time just thinking about applying the brakes – we may assume this thinking time to be constant. During this period the car does not slow, so travels at a constant speed, so that the thinking distance is proportional to the speed of the car: if we double the speed, we double the thinking distance.
25 paź 2021 · Since your stopping distance is a combination of your thinking and braking times, we can see how it quickly adds up. Here are the recommended stopping distances for different speeds: 20mph – Thinking 6m + Braking 6m = Stopping 12m (around 3 car lengths) 30mph – Thinking 9m + Braking 14m = Stopping 23m
GCSE PHYSICS: braking and thinking distances. Bringing together the data for thinking and braking distances, we can add the together to give us the overall stopping distance : Let's combine a graph of thinking and braking distances to give some idea as to which factor is most important.
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