A 70-Kg Pipe Is Hung from a Steel Wire That Is

Short Answer

A 7.0-kg pipe is hung from a steel wire that is 2.5 m long and has a diameter of 0.75 mm.
Young's modulus for steel is $2.0 \times 10 ^ { 11 } \mathrm {~N} / \mathrm { m } ^ { 2 }$
(a) By what distance does the wire stretch?
(b) If the wire diameter were doubled, what would be the stretch?