> (The question I got wrong was related to stopping distances. Face it, do 
> *you* know whether the quoted stopping distance at 70 MPH is 310 yards or 
> 320 yards?

Oh come on, you mean you didn't simply memorise the deacceleration they were 
assuming, then used a constant acceleration formula in the test to work it 
out? :-)

> Because I have absolutely no clue. I also have no clue how far 320 yards 
> *is* in the first place, so it seems kind of moot to me...)

About the distance between the "///" 300 metre exit marker and the actual 
exit itself on the motorway.  BTW most modern cars can stop from 70 mph in 
well under 100 metres, but they seem to have not updated the test answers in 
50 years to account for this.

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