<PRE><B>Question 914718</B>
A.) find the number of revolutions per minute the wheels are rotating.
For this question, convert miles per hour feet per minute.
SO {{{28 miles/ Hour}}} = {{{(28(5280) feet)/ (60 minutes)}}}
= {{{(147840 feet)/ (60 minutes)}}}
{{{(2464 ft) / minute}}}
If we divide 2464 by 2 1/3 we will have the number of revolutions.
2464 by (2 1/3) = {{{2426/(7/3)}}}
{{{2426*(3/7)}}}
7278/7 = 1039.71 revolutions
One revolution per minute = 6.283 radians per minute
So 1039.71*6.283 = 6532.5 radians per minute
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