An 800-Kg Mass Is Hung from a 2-M Steel Wire $\times$

Multiple Choice

An 800-kg mass is hung from a 2-m steel wire with a cross-sectional area of 0.25 cm².Young's modulus for steel is 2.0 $\times$ 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