Four identical hollow cylindrical column...

Four identical hollow cylindrical columns of mild steel support a big structure of mass `50xx10^(3)`kg .The inner and outer radii of each column are are 50 cm and 100 cm respectively. Assuming uniform local distribution ,calculate the compression strain of each column. [use `Y=2.0xx10^(11)Pa,g=9.8m//s^(2)]`

`7.07xx10(-4)`

`3.60xx10^(-8)`

`1.87xx10^(-3)`

`2.60xx10^(-7)`

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