What is the unit of k (spring constant) in SI system?

SI unit of k (spring constant) = N/m

Explanation:

We have expression for force in a spring extended by x m given by

F = kx

Where k is the spring constant value.

Taking units on both sides

Unit of F = Unit of k x Unit of x

N = Unit of k x m

Unit of k = N/m

SI unit of k (spring constant) = N/m

N/m

Explanation:

The unit of k (spring constant) in SI system is N/m.

SI unit of k (spring constant) = N/m