Answer
2.1 s
Work Step by Step
$tan( \theta )$ = $\frac{opposite}{adjacent}$
$tan(12^{\circ})$ = $\frac{0.9}{x}$
$x$ = $\frac{0.9}{tan(12^{\circ})}$
distance travelled
= $\frac{0.9}{tan(12^{\circ})}$ + 2.0
$\approx$ 6.234 m
time
= distance / speed
$\approx$ 6.234 / 3.0
$\approx$ 2.1 s
