Question 1128972
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v = {{{pi*D*n}}}  feet per hour,


where n is the number of revolution per hour,  D is the diameter,  n = 6 revolutions per hour in this case.


So,  V = 3.14*180*6  ft/hour = 3391 ft/hour = {{{3391/5280}}} miles per hour = 0.64 miles per hour.     <U>ANSWER</U>
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