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A wire suspended vertically from one of ...

A wire suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 2mm. The elastic energy stored in the wire is

A

0.1 J

B

0.2 J

C

0.5 J

D

`2.00 J`

Text Solution

Verified by Experts

The correct Answer is:
B
`E = (1)/(2) xx "load" xx "extension"`
`= (1)/(2) xx 200 xx 2 xx 10^(-3) = 0.2 J`
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