Answer:
The extent to which it would stretch is

Step-by-step explanation:
From the question we are told that
The initial length is

The area is

The Young modulus of the steel is

The tension is

The Young modulus is mathematically represented as

Where
is the stress which is mathematically represented as
Substituting values
And e is the strain which is mathematically represented as

Where
The extension of the steel string
Substituting these into the equation above

Substituting values


