Problem $11\mathrm{.}193-$ A telemetry system Problem $11\mathrm{.}193.$b $-$ The acceleration of the skier

Determine the acceleration of the skier at this instant.

At this instant, the acceleration of the skier along with its direction is

$\frac{m}{s^2}$

A telemetry system is used to quantify kinematic values of a ski jumper immediately before the jumper leaves the ramp.

According to the system $r=540ft,r^{}=-105f\frac{t}{s},r^{}=-10f\frac{t}{s^2},=25,{}^{}=0\mathrm{.}07ra\frac{d}{s},{}^{}=0\mathrm{.}06ra\frac{d}{s^2}$

Determine at this instant, the acceleration of the skier along with it's direction.

THE ACCELERATION IS $21\mathrm{.}75$ m$/$s$^2...$I ONLY NEED THE DIRECTION VALUE