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If a spring extends by x on loading, the...

If a spring extends by `x` on loading, then the energy stored by the spring is (if T is tension in the spring and k is spring constant)

A

`T^2/(2k)`

B

`T^2/(2k^2)`

C

`(2k)/T^2`

D

`(2T^2)/k`

Text Solution

Verified by Experts

The correct Answer is:
A
`U=F^2/(2k) =T^2/(2k)" " ["As " U=1/2kx^2=1/2((kx)^2)/k =F^2/2k]`
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