An Aluminum Wire 2 $7.0 \times 10 ^ { 10 } \mathrm {~N} / \mathrm { m } ^ { 2 }$

Multiple Choice

An aluminum wire 2.0 m long and 2.0 mm in diameter supports a 10.0-kg fixture. What is the stress in the wire? Young's modulus for aluminum is $7.0 \times 10 ^ { 10 } \mathrm {~N} / \mathrm { m } ^ { 2 }$

A) $6.2 \times 107 \mathrm {~N} / \mathrm { m } _ { 2 }$
B) $1.2 \times 108 \mathrm {~N} / \mathrm { m } 2$
C) $9.3 \times 107 \mathrm {~N} / \mathrm { m } ^ { 2 }$
D) $3.1 \times 107 \mathrm {~N} / \mathrm { m } ^ { 2 }$