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When load of 5 kg is hung on a wire than extension of 3 m takes place, then work done will be

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When load of 5 kg is hung on a wire than extension of 3 m takes place, then work done will be
A. `75 "joule"`
B. `60 "joule"`
C. `50 "joule" `
D. `100 "joule" `
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1 Answer

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Correct Answer - A
`W=(1)/(2)Fl=(1)/(2)xxMgxxl=(1)/(2)xx5xx10xx3=75J`
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