Is there an easy way to learn stopping distances!
pug_in_a_bed
Posts: 1,975 Forumite
in Motoring
Taking my theory in a few weeks and I just cannot learn the stopping/thinking distances, if their a formula or anything that can help me?
thanks in advance
thanks in advance
0
Comments
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Haven't got an extra special memorable way to remember but always helps to write it down yourself.
But hope you have good luck in your test.0 -
I can't help much either although the night before my theory I did an online theory test over and over until I couldn't keep my eyes open and I passed with 100%, good luck.0
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There used to be a way to remember it in old money, but having the new distances in metres sort of knackers it.
Your base was 20 mph x2 = 40 feet
30 x 2.5 = 75 feet
40 x 3 = 120 feet (they convert it to 118, but it used to be 120 in the old versions)
50 x 3.5 = 175 feet
60 x 4 = 240 feet
70 x 4.5 = 315 feet
The only easy thing about the distances now is that the thinking distance goes up by 3 m per 10 mph...Fight Crime : Shoot Back.
It's the mark of an educated mind to be able to entertain a thought without being seduced by it.
Support your local First Response Group, you might need us one day.0 -
There used to be a way to remember it in old money, but having the new distances in metres sort of knackers it.
Your base was 20 mph x2 = 40 feet
30 x 2.5 = 75 feet
40 x 3 = 120 feet (they convert it to 118, but it used to be 120 in the old versions)
50 x 3.5 = 175 feet
60 x 4 = 240 feet
70 x 4.5 = 315 feet
The only easy thing about the distances now is that the thinking distance goes up by 3 m per 10 mph...
That's exactly how I used to remember it. !!!!!!ed now that it's in meters - back to parrot fashion unfortunately0 -
Measured stopping distances are about the most !!!!ing stupid thing ever invented.0
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TBH, I'd be inclined to say it in feet. After all, it is still a valid unit of measurement in this country.0
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Overall stopping distance = thinking distance + braking distance.
thinking distance (in feet) = speed (in mph)
braking distance (in feet) = (speed (in mph) / 20) x speed (in mph)
so:
overall stopping distance (in feet) = speed (in mph) + ((speed (in mph) / 20) x speed (in mph))
1 foot = 0.3048 metres
... but personally I always find it odd to expect a stopping distance in metres when you are discussing a speed in miles per hour.
[ Simple way to do the calculation in your head (for imperial measurements):
Think of a number/speed,
divide it by 10
divide it by 2
multiply by the number you first thought of
add the number you first thought of
] "Now to trolling as a concept. .... Personally, I've always found it a little sad that people choose to spend such a large proportion of their lives in this way but they do, and we have to deal with it." - MSE Forum Manager 6th July 20100 -
Stopping differences completely different a high powered sports car, a huge 4x4 and an old ford escort.
High powered sports cars have far better brakes/suspension than your average family car allowing for much shorter breaking distances. Perhaps all round disc brakes should be made compulsory for all new cars. But then that might reduce accidents and therefore result in fewer speed cameras / income for the Govt.0 -
The method shown for feet is fine - you get the options in metres and feet during the theory test.0
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Stopping differences completely different a high powered sports car, a huge 4x4 and an old ford escort.
High powered sports cars have far better brakes/suspension than your average family car allowing for much shorter breaking distances. Perhaps all round disc brakes should be made compulsory for all new cars. But then that might reduce accidents and therefore result in fewer speed cameras / income for the Govt.
Yes, it's amazing how many drivers of fancy cars on the motorway think they can stop safely from 70mph (or more!) in 20 feet or less."Now to trolling as a concept. .... Personally, I've always found it a little sad that people choose to spend such a large proportion of their lives in this way but they do, and we have to deal with it." - MSE Forum Manager 6th July 20100
This discussion has been closed.
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