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Originally Posted by mes5107
How long is a "length"? I usually use 10 feet, but I have never heard a definitive answer. If it is 10 feet, a horse coming home the final 1/8th in 13 seconds is covering a shade over 50 feet per second, or 5 lengths per second. If a length is indeed 10 feet then this would mean 3.35 seconds is 16 3/4 lengths.
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Some use the number you are thinking and many figure guys go to 6 lengths/second as Doug, and I believe CJ and Andy do.. I started years ago with 5 lengths/second and generally use that for quick calculations because of the relative mental ease of the number(s) when using it.
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