<PRE><B>Question 405549</B>
A bicycle wheel is 30 inches in diameter.
:
Find the circumference of the wheel
C = {{{30*pi}}}
:
a. To the nearest revolution, how many times will the wheel turn if the bicycle is ridden for 3 miles?
r = {{{(3*5280*12)/(30*pi)}}}
r ~ 2017 revolutions
:
b. Suppose the wheel turns at a constant rate of 2.75 rev per second. What is the linear velocity in mph of a point in the tire?
S(mph) = {{{(30*pi*2.75*3600)/(5280*12)}}}
S = 14.726 mph</PRE>