A light cord is wrapped around a wheel, $R$

$=0\mathrm{.}10m$ and rotational inertia I about its

axis and is attached to mass, $m=2kg,$ see

the figure. The mass $m$ is released from

rest, the cord unwraps, the wheel rotates

about its fixed axis and the object

accelerates downward, $($take $g=$

$10\frac{m}{s^2}).$ The tension in the cord is$,T=18$

$N.$ Find the translational acceleration of

mass $m,$ the torque acting on the wheel and

the rotational inertia, I $($Take $g=10\frac{m}{s^2}).$