A car with mass $1500\,\text{kg}$ speeds up from an initial velocity of $15\,\text{m s}^{-1}$. As a result of this acceleration, the car gains $3.0 \times 10^{5}\,\text{J}$ of kinetic energy. What is the increase in the car’s speed?
- A$5.4\,\text{m s}^{-1}$
- B$10\,\text{m s}^{-1}$
- C$20\,\text{m s}^{-1}$
- D$25\,\text{m s}^{-1}$