Question

A bar of varying cross section is hanging vertically. a load of 16 kn is applied at its lower end which has an area of 10 cm2. the area of the bar varies in such a way that the bar has same stress developed at all sections under the applied load and its own weight. if the length of the bar is 8 m, find: (a) area at the larger end, (b) area at the mid length, and (c) extension of the bar. take e= 200 gn/m2 and ðœŒ=7800 ð‘˜ð‘”/ð‘š3.

Answer 1

a bar of varying cross section vertically.
a)area at the larger end is 18cm2.
b)8m is the area at the mid length.