• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10

Approximate Stopping Distances

Extracts from this document...


Arslaan Asif


The graph shows the approximate stopping distances. It shows thinking distance, braking distance and overall stopping distance.

Stopping distance is the distance the car travels from when the driver sees something to when the vehicle stops, this is called the stopping distance, and this is made up of two parts: the thinking distance and the braking distance.

Stopping distance is calculated by adding together the distance it takes to think and the distance it takes to brake.

Here is the formula to calculate overall stopping distance.

Stopping Distance = Thinking Distance + Braking Distance

The Braking Distance line and the Overall Stopping Distance line on the graph are curves whereas the Thinking Distance line is not. The thinking distance line is straight because the rate of change is consistent this means that the speed which the vehicle is travelling at does not affect the Thinking Distance the thinking distance will stay the same, but the thinking distance will increase as the speed increases because the car will travel further in the same time because it is travelling faster. Doubling the speed will double the thinking distance. E.g. if the vehicle is travelling at 20 mph the thinking distance will be 20 ft. When the line is a curve it means that the rate of change is not consistent, for example if the car is travelling at a speed of 30 mph the thinking distance would be 30 ft and the braking distance would be 45 ft, when you add these together it will give you the overall stopping distance which is 75 ft. this shows that the rate of change is not consistent.

The thinking distance is always the same as the speed you are travelling at. As the speed of the vehicle increases the thinking distance also increases.

...read more.


Heart diseaseSleep DisordersDiabetesPsychiatric DisordersAge-related decline

This usually won’t mean they cannot drive at all, but they may need to see their doctor more often and they may possibly need to restrict driving.

Health also affects thinking distances because if the driver has a mental problem they will take a lot longer to react than an ordinary person, or if the driver has other health issues such as arthritis, that person will have slower reaction times.

Distractions such as mobile phones, in car navigation systems, adjusting the stereo and large roadside billboards increase thinking distances because while the driver is driving they will need to pay full attention to drive and safely control the vehicle and respond to any activity on the road or nearby. Distractions cause the driver to do the following, take their eyes off the road, take their mind off the road and take their hands off the steering wheel. When driving you may be distracted by more than just one distraction e.g. if you want to put the volume higher on the stereo you take your hand of the steering wheel to turn the button and you take your eyes off the road to look at what button you want to press. This will make the thinking distance of the driver increase massively which will make accidents occur more easily as they are not concentrating.

Using a mobile phone is a distraction from driving safely; it divides a driver’s mental attention away from the road meaning that drivers may miss road signs, warnings and hazards. Using a mobile phone increases the time it takes the driver to react.

...read more.


Opponents of tighter speed limits say that the measures can be counterproductive, forcing drivers to spend more time concentrating on surrounding the horizon for speed cameras and keeping an eye on their speedometers, rather than concentrating on the road in front of them.

A further danger of applying such strict limits in residential areas is that British drivers simply may not accept them or take them seriously, which could damage the credibility of speed limits more generally.

I t is just another way for the government and local authorities to collect fines from motorists.

By introducing unrealistic speed limits, drivers may be less inclines to obey limits as a whole.

A change in culture is needed to stop UK drivers from speeding. Simply lowering the limit will not tackle the problem, because many drivers love driving fast as they find it fun, there will need to be change in society about over speeding.

I think that the government should lower the speed limit because it will dramatically lower the amount of deaths and people who are seriously injured and it will also reduce congestion. There are more benefits of reducing the speed limit in towns than disadvantages and downsides so it easily out ways all the downsides of reducing the speed limit in a residential areas. By reducing the speed limit it will be saving many lives and will make the road a safer environment. They should reduce the speed limit as it will save the NHS a lot of money in the long run.

...read more.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Forces and Motion essays

  1. Marked by a teacher

    Physics Investigation: The effect of speed on braking distance

    4 star(s)

    as I will need to slow the ball down as it travels down the ramp. Method There are numerous methods to measure the speed of the ball as it travels from the ramp and onto the carpet. These are the two methods that I have used during the Preliminary in order to test out which is better, and why.

  2. Marked by a teacher

    Physics research study - vehicle safety and braking distances

    3 star(s)

    Thinking distance can be decreased by using road signs to warn the driver that they might have to stop soon. The more alert a driver is, the faster their reaction time, the quicker they can apply the brakes and the smaller is the thinking distance.

  1. Peer reviewed

    road accidents

    3 star(s)

    Even the lights are getting better, stronger and easy to manage, automatically directed. Car stability is also getting better due to better suspensions and to electronic systems which alert you when something is wrong. Tires are always involving and there are now tires which do not even have air in

  2. Trolley Speed

    Therefore I predict there to be a strong negative correlation as shown in the graph. I will also be calculating the average speed of the trolley. I predict that with a greater height, there will be a higher average speed.

  1. Investigation is to see how changing the height of a ramp affects the stopping ...

    this anomaly wasn't anything major and didn't affect the investigation, but it did change the way the graph looked when I was drawing a graph to show stopping distance of the toy car against initial velocity2 . Therefore the graph would look something like this: As you are able to

  2. Pulley Systems.

    Travelling becomes more expensive as fuel consumption increases order to overcome friction. 5) Parts of machinery wear out due to friction between them as they slide over or rub over each other. 6) Due to friction, in between the moving parts, a lot of heat is wasted.

  1. An investigation into factors that effect the braking distance of a trolley

    This potential energy is calculated by the equation: Gravitational Potential Energy = Mass X Gravity X Height From this equation, I can deduct that the height of an object definitely affects the overall potential energy because mass, gravity and height all combine to give potential energy.

  2. Investigating Stopping Distances

    x V The stopping distance (d) is proportional to the square of speed (v ) (where 1/2 x M is constant.) F I will hope to find that stopping distance is directly proportional to speed squared. The graph I will want to plot is a line graph and I expect

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work