Asked by Dan
A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.4 m long. What is the tension in each rope when the 708-N worker stands 2.40 m from one end?
Smaller tension: ___N
Larger tension: ___N
Smaller tension: ___N
Larger tension: ___N
Answers
Answered by
bobpursley
you know the sum of tensions is equal to weight, that leads to tension 1=(708+192)-tension2
Now sum moments. Let tension1 be the rope on one end.
Summing moments about end 1
192*3.4/2 + 2.40*708-3.4*tension2=0
solve for tension 2, then use the first equation to solve for tension 1. You have the answers.
Now sum moments. Let tension1 be the rope on one end.
Summing moments about end 1
192*3.4/2 + 2.40*708-3.4*tension2=0
solve for tension 2, then use the first equation to solve for tension 1. You have the answers.
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