RS2000 Posted September 7, 2014 Share Posted September 7, 2014 Just curious about the history if anyone knows.... In relation to sprints, why is a split time taken at 64 feet - appreciate it's to judge 'launch speed' as it were, but why 64 feet? seems a strange distance, it's not an exact number of yards, it's not an obvious % of a mile, anyone? Thanks Link to comment Share on other sites More sharing options...
Nigel Fox Posted September 7, 2014 Share Posted September 7, 2014 It's because acceleration due to gravity is 32 feet per second per second. Therefore if you cover 64 feet from a standing start in 2 seconds that averages out at 1g. Link to comment Share on other sites More sharing options...
RS2000 Posted September 9, 2014 Author Share Posted September 9, 2014 Sounds good! Many thanks Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted September 10, 2014 Share Posted September 10, 2014 Quoting Nigel Fox: It's because acceleration due to gravity is 32 feet per second per second. Therefore if you cover 64 feet from a standing start in 2 seconds that averages out at 1g. Or in SI - 9.81m/s^2 acceleration for 2 seconds over 19.62m. Link to comment Share on other sites More sharing options...
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