As shown in adjacent figure if a load of mass (m) is attached at lower end of lower wire. Then find the displacementsof the points B, C, D are

As shown in adjacent figure if a load of mass (m) is attached at lower

1.	As shown in adjacent figure if a load of mass (m) is attached at lower end of lower wire. Then find the displacementsof the points B, C, D are
Answer» Solution : As shown in FIGURE elongation of first wire `e_(1)=((mg)l_(1))/(Ay_(1))` elongation of 2nd wire `e_(2)=((mg)l_(2))/(Ay_(2))` elongation of 3rd wire `e_(3)=((mg)l_(3))/(Ay_(3))` DISPLACEMENT of B is `e_(1)` displacement of C is `e_(1)+e_(2)` displacement of D is `e_(1)+e_(2)+e_(3)`