Physics 9702 · AS & A Level · Elastic and plastic behaviour

Elastic and plastic behaviour — practice question

The graph illustrates the non-linear force-extension curve for a wire formed from a new composite material. What might be the strain energy stored in the wire when it is extended elastically to point $P$?

  • A$0.09\,\text{J}$
  • B$0.10\,\text{J}$
  • C$0.11\,\text{J}$
  • D$0.20\,\text{J}$

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