A rocket engine expels $90\,\text{kg}$ of exhaust gas each second at a speed of $190\,\text{m s}^{-1}$ relative to the rocket. What force acts on the rocket as a result of the ejected gas?
- A$2.1\,\text{kN}$
- B$17\,\text{kN}$
- C$18\,\text{kN}$
- D$162\,\text{kN}$