A force $F$, constant in magnitude, acts on a car of mass $m$ and raises the car up a slope over a distance $s$ at constant velocity $v$. The slope is inclined at an angle $\alpha$ to the horizontal. What is the ratio $\frac{\text{gravitational potential energy gained by car}}{\text{work done by force } F}$?
- A$\frac{mg\sin\alpha}{Fv}$
- B$\frac{mv}{Fs}$
- C$\frac{mv^2}{2Fs}$
- D$\frac{mg\sin\alpha}{F}$