Question

find the work done of a stretched copper wirev1m long and 2mm in dusmeter through 1cm given 12.5×10^10n/m^2​

Answer 1

Answer:

Young Modulus of Elasticity

Y=

Al

FL

F=

L

YAl

F=

2

2×10

11

×1×10

−6

×10

−3

×10

−1

F=100N

Work Done =

2

1

×100×1×10

−3

×10

−1

=0.005J

Work done = 5×10

−3

joule