A round tensile test piece has a gauge length of 100 mm and a diameter of 11.28 mm. If the material is an aluminium alloy with a modulus of elasticity of 70 GPa, what extension of the gauge length...

A round tensile test piece has a gauge length of 100 mm and a diameter of 11.28 mm. If the material is an aluminium alloy with a modulus of elasticity of 70 GPa, what extension of the gauge length might be expected when the tensile load applied is 200 N?