At a time oft $=2\mathrm{.}25$ s$,$ a toy truck has a velocity vector of $4\mathrm{.}17$ m$/$s in the direction $23\mathrm{.}4$ south of east. At a time oft $=7\mathrm{.}44$ s$,$ the truck has a velocity vector of $1\mathrm{.}21$ m$/$s in the direction $11\mathrm{.}9$ east of north. For the interval from t $=2\mathrm{.}25$ s to t $=7\mathrm{.}44,$ calculate the average acceleration vector of the truck. Specify the magnitude of this average acceleration vector in units of meters$/$second$?.$ Specify the direction of this average acceleration vector using the same kind of terminology as that underlined in the first two sentences of this problem.