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A wire, suspended vertically from one en...

A wire, suspended vertically from one end , is stretched by attaching a weight of 20N to the lower end . The weight stretches the wire by 1 mm. How much energy is gained by the wire ?

A

0.01 J

B

0.02 J

C

0.04 J

D

1.0 J

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The correct Answer is:
A
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