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If a spring of stiffness 'k' is cut into...

If a spring of stiffness `'k'` is cut into two parts `'A'` and `'B'` of length `l_(A):l_(B)=2:3`, then the stiffness of spring `'A'` is given by

A

`(5)/(2)k`

B

`(3k)/(5)`

C

`(2k)/(5)`

D

`k`

Text Solution

Verified by Experts

The correct Answer is:
A
`k_(1)l_(1) = k_(2)l_(2) = kl.k_(1) = (5k)/(2)`
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