A graph showing extension against force for a spring is shown. What is the spring constant of the spring?
- A$0.025\,\text{N m}^{-1}$
- B$0.40\,\text{N m}^{-1}$
- C$2.5\,\text{N m}^{-1}$
- D$40\,\text{N m}^{-1}$
Physics 9702 · AS & A Level · Elastic and plastic behaviour