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Physics (AS & A Level) · Feb / March 2020 · Paper 12 · Question 20

9702Elastic and plastic behaviour

The graph shows the non-linear force–extension curve for a wire made from a new composite material. What is the best estimate of the work done in stretching the wire to point P?

  1. A0.09 J
  2. B0.10 J
  3. C0.11 J
  4. D0.20 J

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Correct answer: C. 0.11 J

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