A Cable that has a yield strength of 620 MPa and a safety factor of 3. This cable must be able to support 5 buckets which must be able to carry up 5,429.554 kg each.(adsbygoogle = window.adsbygoogle || []).push({});

Bucket mass is negligible.

Stress = Mass/Area

Area = force/stress

My attempt at a solution:

Total weight 5 buckets must carry = 5,429.554 kg * 5 = 27147.77 kg

Area = 27147.77kg * 9.8ms^2 / 206.667MPa x 10^6

Area = .00128

.00128 = ∏d^2 / 4

.00164 = d^2

.040496m = d

or 40.497mm

I know this is probably all wrong.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: How to determine the diameter of a cable

**Physics Forums | Science Articles, Homework Help, Discussion**