## Question

###### A steel cable to be used in a suspension bridge (loaded in tension) must support a...

A steel cable to be used in a suspension bridge (loaded in tension) must support a weight equivalent to 1500 kg. If the elastic limit of the steel to use is σy= 1380 MPa, y and the UTS = 1550 MPa, calculate:

a) Minimum diameter of the cable to avoid failure.

b) How this diameter must be modified if a security factor of 2.5 is used.

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