ne instant, force F $=9\mathrm{.}59]$ N acts on a $0\mathrm{.}245$ kg object that has position vector $7=(7\mathrm{.}88$i $-7\mathrm{.}88$k$)$ m and velocity vector

$=(-3\mathrm{.}18$i $+3\mathrm{.}18$k$)$ m$/$s $.$ About the origin and in unit$-$vector notation, what are $($a$)$ the object's angular momentum and $($b$)$ the torque acting on the object?