Question

A 650-N billboard worker stands on a 4.00-m scaffold weighing 600 N and supported by vertical...

A 650-N billboard worker stands on a 4.00-m scaffold weighing 600 N 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 660 N in that rope?

Answer is 1.78m but I don't know how to get that answer

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Answer #1

Let x be the distance of worker from rope with 660N Tension

Take Moment about A ,counter clockwise positive

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