Posted by marie darling on Friday, March 15, 2013 at 10:09pm.
radius of wheel = 24 inches
one rotation = 2π(24) = 48π inches
in 1 hour it goes 55 miles
= 55x5280x12 inches
= 3484800 inches
number of rotations per hour
= 3484800/(48π) = 23109.29774 rotations per hour
= 385.155 rpm
= 385.155x(2π) radians /min
= 2420 radians/min
check my arithmetic
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