Im stuck on this one and its driving me a bit mad(adsbygoogle = window.adsbygoogle || []).push({});

Here is what I have so far......

Calculate the tensile stress in a nylon fishing wire of diamater 0.36mm which a fish is pulling with a force of 20 N.

What I get:

Stress = Force / Area

Stress = 20 / π*(0.18x10^-3)^2

Stress = 20 / 1.02x10^-7

Stress = 1.96x10^8 Pa

OR

Area = π*(0.18)^2 mm

Area = 1.02x10^-1 mm

Area = 1.02x10^-4 m

Stress = 20 / 1.02x10^-4

Stress = 1.96x10^8 Pa

Stress = 1.96x10^5 Pa

WHEREAS it should be:

Stress = 1.96x10^6 Pa

Could somebody tell me what the answer is and PLEASE tell me how it was supposed to be worked out. This isnt really for homework per say, as its just a question I seen while working far ahead of everyone and it struck my curiosity.

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# Homework Help: A little help please

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