A train of mass $300\ 000\ \text{kg}$ is speeding up at $0.80\ \text{m s}^{-2}$. At a certain moment, the train is moving at $5.0\ \text{m s}^{-1}$ and the resistive force opposing its motion is $15\ \text{kN}$. At this moment, what is the rate at which the kinetic energy of the train is increasing?
- A0.075 MW
- B1.2 MW
- C1.3 MW
- D3.8 MW