Question: b. A rod is 2m long at a temperature of 100C. Find the expansion of the rod, when the temperature is raised to 80C.

b. A rod is 2m long at a temperature of 100C. Find

b. A rod is 2m long at a temperature of 100C. Find the expansion of the rod, when the temperature is raised to 80C. If this expansion is prevented, find the stress induced in the material of the rod. Take E = 105 MN/m and a = 0.000012 per degree centigrade. AP(5 marks) c. Explain why horizontal equilibrium and vertical equilibrium are relevant in determine moment of a civil engineering beam? AP(3 marks)

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