If a spring of stiffness ‘k’ is cut into parts ‘A’ and ‘B’ of length lA : lB = 2 : 3, then the stiffness of spring ‘A’ is given by(a) 3k/5(b) 2k/5(c) k(d) 5/2k
Simran Bhatia , 10 Years ago
Grade 11
1 Answers
Kevin Nash
Last Activity: 10 Years ago
(d)
Here, lA = 2l/5, lB = (3l/5)
kl =
kAlA = kBlBkl = kA(2l/5
kA
= 5k/2? kB =5k/3
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