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Physics (AS & A Level) · Oct / Nov 2020 · Paper 12 · Question 21

9702Elastic and plastic behaviour

The graph shows the force–extension graph for a wire. The wire is already extended by a force of 60 N. How much work is done to increase the extension of the wire by 2.0 mm?

  1. A0.040 J
  2. B0.090 J
  3. C0.16 J
  4. D0.25 J

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Correct answer: C. 0.16 J

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