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About 3 quarters of a second if the rate of deceleration is constant.
More interestingly, that works out at an average of 10G.
mmccarthy-
10G!?
That reminds me of when I was a witness in court, the defendant claimed that he'd merely slowed down lightly to let a car out of a side road, his speed had never dropped below 20mph, and myself and @sasmon had been quite a way behind him. One of the judges quite rightly asked, "how then did @sasmon manage to hit the back of your van with such force to break his bike and to leave a person sized dent in the boot, unless he was cycling at impossible speeds?"
He and his lawyer clearly hadn't thought that one through.
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More interestingly, that works out at an average of 10G.
No. For 8m/s to 0m/s in 3.2m the rate of deceleration would be 10m/s^2, so ~1G (=9.8m/s^2).
NurseHolliday
Greenbank
If this copper is travelling at 18mph or 8M every second and he can stop dead in 3.2M he's stopped dead in < half a second ? I think i need new brakes.