Answer:2.172 GPa
0.370
0.139 mm
Step-by-step explanation:
Load[P]=22 KN
thickness[t]=15 mm
width[w]=45mm
length[L]=200 mm
Longitudnal strain
=0.015
modulus of elasticity[E]=

E=

E=2.172 GPa
[b]poisson's ratio




[c]Change in bar thickness
As volume remains constant

t'=14.86mm
change in thickness =0.139 mm[compression]