An object with mass $1.2\,\text{kg}$ is travelling at a velocity of $2.0\,\text{m s}^{-1}$ when a force of $4.0\,\text{N}$ is applied to it. Its velocity then rises to $5.0\,\text{m s}^{-1}$ in the same direction. For how long does the force act on the object?
- A$0.90\,\text{s}$
- B$1.1\,\text{s}$
- C$1.5\,\text{s}$
- D$3.6\,\text{s}$