- #1

mikefitz

- 155

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**What is the maximum load that could be suspended from a copper wire of length 1.5 m and radius 1.1 mm without breaking the wire? Copper has an elastic limit of 3 × 108 Pa and a tensile strength of 4.2 × 10^8 Pa**

F/A<Elastic Limit

= m(9.81) / 3.8013 = 3x10^8Pa

9.81m= 114 098 123

m= 116 248 535 N ?

Seems like an aweful lot of load, what did i do wrong on this one?