2 ms·
It's very frustrating to see the 1/2 mile record time in seconds and then go looking for comparisons which are all in mph or kph instead of seconds. Yes, there
by ourmandave 3y ago
It's very frustrating to see the 1/2 mile record time in seconds and then go looking for comparisons which are all in mph or kph instead of seconds.
Yes, there's pace calculators, but that would require effort on my part.
- Sharlin 3y agoDifferent things, surely? Seconds to half mile is a measure of (average) acceleration; we’re starting from a standstill. To get the speed after x seconds you need to know the acceleration curve and integrate; knowing the average acceleration is not enough. Kph or mph are measures of (instantaneous or sustained or average) speed and do not tell anything about acceleration.
- TeMPOraL 3y agoAsk GPT-4 to write you a bookmarklet/userscript to convert those automatically. (I mean it. I'm still in awe of this even being possible. But it's great for one-off band-aids like this.)
- HPsquared 3y agoIt's not possible unless you make assumptions about the acceleration rate: does it accelerate a lot at the start, or is it sustained? It depends on mass, power (and how power output varies with speed), and drag (and how this varies with speed). Definitely not a simple unit conversion.