Question

Researchers at the University of British Columbia have measured muscle reaction times of 0.1 seconds for Olympic sprinters. Suppose the human chain consisted entirely of Olympic sprinters with an average arm span of 6 feet. It would take the signal ____ days to travel all the way around the world. Round your answer to the nearest tenth of a day and enter only the number.

Answer 1

(24000 mile) * (5280 ft/mile) / (6 ft/person) * (0.1 sec/person) / (60 sec/minute) / (60 minute/hour ) / (24 hour/day) = 24.4 days (rounded to nearest tenth).