Physics (AS & A Level) · Oct / Nov 2018 · Paper 12 · Question 20

A metal cylinder is able to withstand a compressive force of 4.0 kN without deforming plastically. 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?

1. AA = 1.5 × 10⁻⁵ m², σ = 50 MPa
2. BA = 1.5 × 10⁻⁵ m², σ = 80 MPa
3. CA = 7.5 × 10⁻⁵ m², σ = 50 MPa
4. DA = 7.5 × 10⁻⁵ m², σ = 80 MPa

As printed in the paper