A student foolishly attempts to stop a steel bar, of length L = 1 m and at a temperature of 20ºC, from thermally expandi

[answerhappygod]

A student foolishly attempts to stop a steel bar, of length L =1 m and at a temperature of 20ºC, from thermally expanding byattaching it to a wooden support with a nail at each end. Steel'sYoung's modulus is Y = 1.5 × 1011 N/m2 and it's linear thermalexpansion coefficient is α = 12.8 × 10-6 1/C
Enter an expression, in terms of defined variables, for thestress, S, that each nail will need to sustain at a temperatureTs.