Question

Each of the above three springs are identical (they have the same equilibrium length and spring constant $k$). They are fixed together as shown in the figure. What is the effective spring constant of the assembly?

• A. $k$
• B. $\frac{2}{3}k$
• C. $\frac{1}{2}k$
• D. $\frac{1}{3}k$

Hint:

When springs are in parallel, their spring constants add up.

Answer 1

The Correct Option is B

When springs are arranged in parallel, the effective spring constant is the sum of the individual spring constants. Therefore, the effective spring constant for this assembly is $\frac{2}{3}k$.