Letzte Bewertung efinger & junge oHG
2 Bewertungen
Bewertung vom 05.07.2012
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The circumference of the tire is X. so, C = pi times D = 3.14 (41) = 128.74 inechsThen in one minute, the tire moves 340 X. change that to feet, you divide by 12 of course. (128.74 inechs x 340 /// all divided by 12 = 3647.63 feet per minute.One mile is 5,280 feet. (60 miles per hour is one mile per minute = 5280 feet per minute . so you know this will be less than 60 mph.)So 60 mph / 5280 feet per minute = answer' in mph / your tire feet per minuteCan you finish it now? about 41. 5 mph?If he drove 489 revolutions per minute, that would be ONE MILE in one minute = 60mph.