An 800-Kg Mass Is Hung from a 1 $\times$ 10¹¹ N/m²

Multiple Choice

An 800-kg mass is hung from a 1.5-m copper wire with a cross-sectional area of 0.35 cm².Young's modulus for copper is 1.1 $\times$ 10¹¹ N/m².How much does the wire stretch?

A) 2.56 mm
B) 2.97 mm
C) 3.14 mm
D) 3.86 mm
E) 4.13 mm