A-LevelPhysicsDeformation of solids9702/12 · Oct/Nov 2018 · Q201 Mark
A metal cylinder is able to withstand a compressive force of 4.0 kN without deforming plastically. [Figure 20.1] The cylinder has cross-sectional area A and would be at its elastic limit when a stress σ is applied. What is a possible pair of values for A and σ?
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A/ m²: 1.5 x 10⁻⁵, σ / MPa: 50
B/ m²: 1.5 x 10⁻⁵, σ / MPa: 80
C/ m²: 7.5 x 10⁻⁵, σ / MPa: 50
D/ m²: 7.5 x 10⁻⁵, σ / MPa: 80
✓ Correct answer
D: / m²: 7.5 x 10⁻⁵, σ / MPa: 80
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