stress= 40n /area
so it depends the units. If you want Pascal (N/m^2), then
strss= 40N/(.44e-3)^2=206MegaN/m^2
strain: deltaL/L= .30e-3/4= ....
A weight of 40N was attached to the end of a wire during modulus experiment, if the length of the wire is 4m and the diameter is 0.44mm and the extension recorded is 0.30mm. calculate the stress and strain of the wire?.
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