a wire of radius 2mm is extended by 10%. if the required force is 50N, then calculate the values of Y(youngs modulus)
Answers
Answered by
0
Answer: Given : L=2 m A=0.0225mm
2
=0.0225×10
−6
m
3
F=100 N
Stress =
A
F
=
0.0225×10
−6
100
=4.4×10
9
N/m
2
Energy stored U=
2
1
×
Y
(stress)
2
×AL
Or U=
2
1
×
20×10
10
(4.4×10
9
)
2
×(0.0225×10
−6
)(2)=2.222 J
Attachments:
Similar questions