# Physics

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a safety harness is connected to a cable with a report breaking stress of 800MNm2.
what mass could be hung from a harness if the diameter of the cable was 6mm.
how do I work this out?

• Physics -

800•10⁶ N/m² ….1 m²
mg……………πD²/4= π(6•10⁻³)²/4
mg=800•10⁶•π(6•10⁻³)²/4=22619 N
m=22619/9.8=2308 kg

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