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A load o f 1 kg weight is a attached to...

A load o f 1 kg weight is a attached to one end of a steel wire o f area of cross-section `3mm^(2)` and Young's modulus `10^(11) N//m^(2)` . The other end is suspended vertically from a hook on a wall , then the load is pulled horizontally and released .When the load passes through its lowest position the fraction al change in lenght is `(Take g = 10m//s^(2))`

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