A car with mass $1100\,$kg is moving at a steady speed of $15\,\text{m s}^{-1}$ uphill on a slope inclined at $10^{\circ}$ to the horizontal. The total frictional forces on the car act down the slope and have a magnitude of $\dfrac{W}{5}$, where $W$ represents the car’s weight. What is the useful output power of the car’s engine?
- A$28\,$kW
- B$32\,$kW
- C$60\,$kW
- D$190\,$kW