Answer
(a) $14~m/s^{2}\gt14~ft/s^{2}$.
(b) $14~m/s^{2}=46~ft/s^{2}$.
(c) $14~m/s^{2}= 1.8\times10^{5}~km/h^{2}$.
Work Step by Step
$1~m=3.281~ft$, $1000~m=1~km$ and $1~h=3600~s$
(a) $14~m/s^{2}\gt14~ft/s^{2}$ because $1~m\gt1~ft$
(b) $14~m/s^{2}= (14~m/s^{2})(\frac{3.281~ft}{1~m})=46~ft/s^{2}$
(c) $14~m/s^{2}= (14~m/s^{2})(\frac{1~km}{1000~m})(\frac{3600~s}{1~h})^{2}=1.8\times10^{5}~km/h^{2}$
