$17\mathrm{.}4$

P$3$ofy

$m_{AB}=4kg$

$m_{}=16kg$

Whicel

radius of gyvation $k=\mathrm{.}18m$

$=60\frac{r}{(m)}(\frac{2}{60})=6\mathrm{.}283$rad

$W_{AB}+V_B$ when $B$ is at the boltom of the wheel?