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When the load on a wire increased slowly...

When the load on a wire increased slowly from `2 kg wt.` to `4 kg wt.`, the elogation increases from `0.6 mm` to `1.00 mm`. How much work is done during the extension of the wire? `[ g = 9.8 m//s^(2)]`

A

`14xx10^(-3)J`

B

`0.4xx10^(-3)J`

C

`8xx10^(-2)J`

D

`10^(-3)J`

Text Solution

Verified by Experts

`W=((1)/(2)F_(2)xxDeltal_(2))-((1)/(2)F_(1)xxDeltal_(1))=20xx10^(-3)-6xx10^(-3)=14xx10^(-3)J`
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