Nylon Bar (E = 2

question 5

Multiple Choice

nylon bar (E = 2.1 GPa) with diameter 12 mm, length 4.5 m, and weight 5.6 N hangs vertically under its own weight. The elongation of the bar at its free end is approximately:

• A) 0.05 mm
• B) 0.07 mm
• C) 0.11 mm
• D) 0.17 mm

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