Question

An aluminum rod (1) and a brass rod (2) are connected to rigid supports as illustrated. The cross-sectional areas of rods (1) and (2) are 2000 mm2 and 3000 mm2

Answer 1

When a rod is subjected to tensile stress, it experiences a change in length. The tensile stress in the rod can be calculated using the formula: tensile stress (σ) = F/A

Step-by-step explanation:

When a rod is subjected to tensile stress, it experiences a change in length. The tensile stress in the rod can be calculated using the formula:

tensile stress (σ) = F/A

Where F is the force applied and A is the cross-sectional area of the rod. The elongation of the rod under stress can be calculated using the formula:

elongation (ΔL) = (F * L) / (A * Y)

Where L is the original length of the rod and Y is the Young's modulus of the material.