Question 564126
Circumference = {{{ C }}} ft
Diameter = {{{ d }}} ft
{{{ C = pi*d }}}
{{{ C = pi*3 }}}
In 1 turn of the wheel, it rolls a
length of {{{ C = pi*3 }}} ft
1 mile = {{{ 5280 }}} ft
In 1 mile, the wheel makes {{{ 5280 / (pi*3) = 560.331 }}} revolutions
{{{ 1 }}} revs/sec x {{{ pi*3 }}} ft/rev x {{{ 1/5280 }}} miles / ft x {{{ 3600/1 }}} sec/hr = mi/hr
{{{ 1*pi*3 *(1/5280)*3600 = 6.425 }}} mi/hr
Hope I got it right