Physics

A copper wire with a length 2.0m, cross sectional area 7.1x10^-6 m^2 and young's modulus 11x10^10 N/m^2 has a 200kg load hung on it. What is its increase the length? (g=9.8 m/s^2)

im not sure how to start this problem or what equation to use, can some one help me out with this problem.

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  1. 5.0 mm

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