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Find the minimum diameter of an alloy cable, tensile strength 75 MPa, needed to support a load of 15 kN.

I know the answer is 1.6cm but i need someone to help explain how to get it.

Ive got this far...

Tensile strength of cable = 75 MPa = 75 000 000 newtons per square meter

= 7.5 x 10^7 m^-2

The weight material required to hold = 15kN = 15 000 N

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# Tensile strength question

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