A bicyclist rides down a hill with a $3\mathrm{.}0$ degree$($s$)$ slope; he attains a terminal speed of $15\mathrm{.}0\frac{m}{s}.$ What terminal speed would he reach if he went down a $6\mathrm{.}0$ degree$($s$)$ slope?

$33\frac{m}{s}$

$30$ m$/$s

$26$ m$/$s

$21$ m$/$s