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A load of 1kg weight is attacheed to one...

A load of `1kg` weight is attacheed to one end of a steel wire of cross sectional area `3mm^(2)` and Young's modulus `10^(11) N//m^(2)`. The other end is suspended vertically form a hook on a wall, then load is pulled horizonatally and relased. When the load passes through its lowest position the fractional change in length is `(g = 10m//s^(2))`

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