Asked by Idali
A <69.0> kg construction worker is standing on an 18.0 kg plank. The plank is <12.50> m long and it is suspended by vertical cables at each end. If the worker stands 2.80 from the right end of the plank, what is the tension in right cable? Give your answer in newtons (N) and with 3 significant figures.
Answers
Answered by
bobpursley
let tension right and left=Tr,Tl
Tr+Tl=69*g
now sum of moments about the right end..
69g*2.8+Tl*12.5=0
solve for Tl in that equation, then go back to the first equaion, and solve for Tr
Tr+Tl=69*g
now sum of moments about the right end..
69g*2.8+Tl*12.5=0
solve for Tl in that equation, then go back to the first equaion, and solve for Tr
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