A car with a total mass of $1560\,\text{kg}$ moves at a steady speed of $32\,\text{m s}^{-1}$. The car provides a driving force of $680\,\text{N}$. Its kinetic energy is $800\,\text{kJ}$ and its momentum is $50\,000\,\text{N s}$. Which two pieces of data could be used to work out the useful power output of the car?
- Adriving force and momentum
- Bkinetic energy and mass
- Cmass and momentum
- Dspeed and driving force