a
\(\begin{array}{l}
{a_r}\, = {\omega ^2}R\\
{a_r} = {\left( {2\pi 2} \right)^2}R\\
\,\,\,\,\,\, = 4{\pi ^2}{2^2}{R^2} = 4{\pi ^2}{\left( {\frac{{22}}{{44}}} \right)^2}\,\,\left( 1 \right)\left[ {\therefore v = \frac{{22}}{{44}}} \right]\\
{a_t} = \frac{{dv}}{{dt}} = 0\\
{a_{net}} = {a_r} = {\pi ^2}m{s^{ - 2}}\,and\,direction\,along\,the\\
redius\,towards\,the\,center.
\end{array}\)