A-LevelPhysicsDeformation of solidsMay/June 2020Paper 2 Q59 Marks
One end of a wire is attached to a fixed point. A force F is applied to the wire to cause extension x. The variation with F of x is shown in Fig. 5.1. [Figure 5.1] The wire has a cross-sectional area of 4.1×10⁻⁷m² and is made of metal of Young modulus 1.7 × 10¹¹ Pa. Assume that the cross-sectional area of the wire remains constant as the wire extends.
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