Answer
$32\pi$ inches.
Work Step by Step
$r=2\,in$
$t=8\,hr$
$\omega=\frac{2\pi\,rad}{60\,min}=\frac{2\pi\,rad}{1\,hr}=2\pi\,rad/hr$
$v=r\omega=(2\,in)(2\pi\,rad/hr)=4\pi\,in/hr$
$d=vt=(4\pi\,in/hr)(8\,hr)=32\pi \,in$
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