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A wire suspended vertically from one of ...

A wire suspended vertically from one of the its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1 mm. then the elastic energy stored in the wire is

A

0.1J

B

0.2J

C

10J

D

20J

Text Solution

Verified by Experts

The correct Answer is:
A
`U= (1)/(2) F Delta l= (1)/(2) xx 200 xx 1 xx 10^(-3) = 0.1J`
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