Here's why:

* Force Constant (k): Represents the stiffness of a spring or other elastic object. It's a measure of how much force is required to stretch or compress the object by a certain distance.

* Force (F): Measured in Newtons (N).

* Displacement (x): Measured in meters (m).

Hooke's Law relates these quantities:

* F = -kx

Where:

* F is the force applied

* k is the force constant

* x is the displacement from the equilibrium position

Solving for 'k', we get:

* k = -F/x

Therefore, the units of k are N/m.