A glider with mass $1500\,\text{kg}$ is set off from rest along a straight, level track by means of a catapult. The graph illustrates how the resultant force changes with time. What is the glider’s speed at the instant the resultant force on it becomes zero?
- A$133\,\text{m s}^{-1}$
- B$200\,\text{m s}^{-1}$
- C$250\,\text{m s}^{-1}$
- D$267\,\text{m s}^{-1}$