Question

a bar of 100 cm elongates 101.36cm when a load of 15000 kg is applied to it take the area of cross section of bar as 10 cm² find stress, strain and youngs moduls​

Answer 1

Answer

stress= Load / Area

=15000/10

=1500Kg/cm2

Strain = Change in lenght ÷ original lenght

=(101.36-100)÷100

=1.36/100

=0.0136

Youngs Modulus = Stress/Strain

= 1500/0.0136

= 1.10×10^5 kg/cm2