At one instant, force F $=2\mathrm{.}24$; N acts on a $0\mathrm{.}692$ kg object that has position vector $=(8\mathrm{.}608\mathrm{.}60$k$)$ m and velocity vector $=(6\mathrm{.}171+6\mathrm{.}17$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?