An axial pull of 50 KN is suddenly applied to a steel bar 2 m long and 1000 mm2 in cross-section. If modulus of elasticity is 200 GPa, find strain energy stored in the bar

An axial pull of 50 KN is suddenly applied to a steel bar 2 m long and

1.	An axial pull of 50 KN is suddenly applied to a steel bar 2 m long and 1000 mm2 in cross-section. If modulus of elasticity is 200 GPa, find strain energy stored in the bar
A.	10,000 N.mm
B.	20,000 N.mm
C.	25,000 N.mm
D.	50,000 N.mm
Answer» E.