Chapter 12375P12.63Fy∑=0:+−+=3803200N NFgFg=700 NTake torques about her feet:τ∑=−++=3802 007003200 0mNN.afafxx=109. mFIG. P12.63P12.64The tension in this cable is not uniform, so this becomes a fairly difficult problem.dLLFYA=At any point in the cable, Fis the weight of cable below that point. Thus, Fgy=µwhere is the massper unit length of the cable.Then,∆ydLLdygYAydygLYALLiii=FHGIKJ==zz00212µµ∆y=××
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