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An elastic spring of unstretched length ...

An elastic spring of unstretched length L and spring constant K is stretched by a small length x. It is further stretched by another small length y. the work done in second stretcing is

A

`(1)/(2)ky^(2)`

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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