Aroller coaster $(497$ kg$)$ moves from A $(7\mathrm{.}01$ m above the ground$)$ to B $(23\mathrm{.}2$ m above the ground$)$ Two non$-$conservative forces are present, friction does $-2\mathrm{.}69*10^4$ J of work on the car and a chain mechanism does $+5\mathrm{.}13+10^4$ J of work to help the car up a long clomb. What is the change in the cars kinetic energy KE$,-$KE$,$ from A to B