Physics (AS & A Level) · May / June 2023 · Paper 13 · Question 19

The graph shows how the length of a spring varies with the force applied to it. The spring has unstretched length L₀. When a force F is applied, the spring has length L₁. What is the work done in stretching the spring to length L₁?

1. A1/2 FL₁
2. B1/2 F(L₁ − L₀)
3. CFL₁
4. DF(L₁ − L₀)

As printed in the paper