An 800N billboard worker stands on a 4m scaffold weighing 500N and supported by vertical ropes at each end. How far would the worker stand from one of the supporting ropes to produce a tension of 550N in that rope?

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  1. Due to the scaffold 250 N on each rope
    where to generate an additional 300 N

    total = 800
    so 300 on one end and 500 on the other end due to man
    300 x = 500(4-x)
    300 x = 2000 - 500 x
    800 x = 2000
    x = 5/2 = 2.5

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  2. 850

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