$4.$You have exactly $3$ minutes $44$ seconds to get to your next class on time and that classroom is $237$ m east of where you are right now. First you run to your dorm room at an average velocity of $5\mathrm{.}64$ m$/$s to the south to pick up your calculator and your dorm room is $236$ m south of where you were initially. What average velocity $($magnitude only$)$ do you now need to run from your dorm room to your classroom to arrive exactly on time? a$.2\mathrm{.}11$ m$/$s b$.1\mathrm{.}49$ m$/$s c$.5\mathrm{.}64$ m$/$s d$.1\mathrm{.}84$ m$/$s $5.$ A car drives around a circular track of diameter $160$ m at a constant speed of $33\mathrm{.}5$ m$/$s$.$ During the time it takes the car to travel $247$ degrees around, what is the magnitude of the car s average acceleration? a$.14\mathrm{.}03$ m$/$s $^2$ b$.7\mathrm{.}01$ m$/$s $^2$ c$.5\mathrm{.}43$ m$/$s $^2$ d$.0$ m$/$s $^2$