Question

A light spring of spring constant k is cut into two equal halves. Each half is connected in Parallel then net spring constant of the combination is

• A. $\frac { \mathrm { k } } { 4 }$
• B. $\frac { \mathrm { k } } { 2 }$
• C. 2k
• D. 4k

Answer 1

Answer: (D)

4k

Answer 2

k_eq = 2k + 2k = 4k $\left( \because \mathrm { k } \alpha \frac { 1 } { 1 } \right)$