A $54\mathrm{.}4$kg$54\mathrm{.}4$kg skier with an initial speed of $13\mathrm{.}7$m$/$s$13\mathrm{.}7$m$/$s coasts up a $2\mathrm{.}50$m$2\mathrm{.}50$m high rise, as shown in the figure.