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A body of mass 3.14 kg is suspended from...

A body of mass 3.14 kg is suspended from one end of a non uniform wire of length 10m, such that the radius of the wire is changing uniformly from `9.8xx10^(-4)` m at one end to `5xx10^(-4)` m at the other end. Find the change in length of the wire in mm. Young's modulus of the material of the wire is `2xx10^(11)N//m^(2)` (mass of wire is negligible)

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