Homework Help: physics

Posted by kala on Monday, February 4, 2013 at 2:09am.

an aluminium rod has a breaking strain 0.2%.The minimum cross section area of he rd in m^2 in order to support a load of 10^4N is if young's modulus is 7*10^9 N/m^2
ans:
1.) 7.1*10^-4

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