(i)[2]
The car is travelling along a straight, level road at a constant speed of $32\,\text{m s}^{-1}$. Find, in $\text{kW}$, the rate at which the engine of the car is working.
(ii)[3]
The car moves at a constant speed up a hill inclined at an angle of $\theta$ to the horizontal, where $\sin\theta = 0.1$, while the engine is working at $76.5\,\text{kW}$. Find the speed.