A-LevelPhysicsDeformation of solidsOct/Nov 2017Paper 2 Q45 Marks
A wire is designed to ensure that its strain does not exceed 4.0 × 10⁻⁴ when a force of 8.0kN is applied. The Young modulus of the metal of the wire is 2.1 × 10¹¹ Pa. It may be assumed that the wire obeys Hooke's law. For a force of 8.0 kN, calculate, for the wire,
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