Answer
Please see the work below.
Work Step by Step
We know that
$\omega=\frac{2\pi \frac{rad}{s}}{3600s}=0.001745\frac{rad}{s}$
$r=7.5cm=0.075m$
$v=r\omega$
We plug in the known values to obtain:
$v=(0.075)(0.001745\frac{rad}{s})=1.3\times 10^{-4}\frac{m}{s}$
We also know that
$a=\frac{v^2}{r}$
We plug in the known values to obtain:
$a=\frac{1.3\times 10^{-4}}{0.075}$
$a=2.28\times 10^{-7}\frac{m}{s^2}$
