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[–]matthew--0 points
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No sure. But I assume they took the time stamp for two similar pictures. Estimated the distance the car travelled, then divided that by the difference in time.
[–]15418570?0 points
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That's how fit would do it. Then you can just assume linear change in speed or try to model the real world breaking behavior which doesn't fall exactly linear
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[–] matthew-- 0 points 6 points 6 points (+6|-0) ago
No sure. But I assume they took the time stamp for two similar pictures. Estimated the distance the car travelled, then divided that by the difference in time.
[–] 15418570? 0 points 3 points 3 points (+3|-0) ago
That's how fit would do it. Then you can just assume linear change in speed or try to model the real world breaking behavior which doesn't fall exactly linear
[–] matthew-- 0 points 1 point 1 point (+1|-0) ago
It depends on the time difference between the two points. If it's only half a meter, then it's not too far off.
There are also simple empirical formulas for estimating this stuff. At least, there are for aircraft.
But yes, the braking is not linear.