18 Cords of force constants ka k and kc and relaxed lengths

Last updated: 6/7/2023

18 Cords of force constants ka k and kc and relaxed lengths lA IB and lc are joined with each other at one of their ends The free ends of the cords are pulled maintaining them always in a plane For a particular set of pulling forces an arrangement shown in the figure I is obtained and for another set of pulling of forces arrangement shown in the figure II is obtained In the arrangement of figure I extended length of each cord is L and in the arrangement of figure II extended length of each cord is L L KK A 120 120 120 C A 135 90 C Figure I B Figure II B With the help of the given information check validity of the following statements al l lc and k kg kc b lA l lc and either k kg kc or k kB kc c l LB lc if k kg kc or l lg lc if k k kc d l l le if k kg kc or la lg lc if k kB kc B