SOLUTION: how many revolutions per minute does 28in diameter wheel is traveling at 55 mi/hr?

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Question 598284: how many revolutions per minute does 28in diameter wheel is traveling at 55 mi/hr?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
On the ground, the straight line travel of the wheel in
1 revolution is the circumference of the wheel.
+C+=+pi%2Ad+
+C+=+28%2Api+ in/rev
at 55 mi/hr,
+55+ mi/hr x +5280+ ft/mi x +12+ in/ft x +1%2F60+ hrs/min = in/min
+55%2A5280%2A12%2A%281%2F60%29+=+58080+ in/min
and
+58080+%2F+%28+28%2Api+%29++=+660.331+
The wheel is turning at 66.331 rev/min