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A spring of force constant .k. is strech...

A spring of force constant .k. is streched by a small length .x.. Find the work done in streching it further by a small length .y..

A

`1/2k(x^(2)+y^(2))`

B

`1/2k(x+y)^(2)`

C

`1/2k(y^(2)-x^(2))`

D

`1/2ky(2x+y)`

Text Solution

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The correct Answer is:
D
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