A $1\mathrm{.}50$ kg solid, uniform disk rolls without slipping across a level surface, translating at $4\mathrm{.}00$ m$/$s$.$ If the disk's radius is $0\mathrm{.}360$ m$,$ find the following.

HINT

$($a$)$

the disk's translational kinetic energy $($in J$)$

J

$($b$)$

the disk's rotational kinetic energy $($in J$)$

J