Spring Constant

Now, the Spring constant is defined as the force required to restore the spring to its original shape per unit of extension of the spring. This also means that after knowing the spring constant we can easily find how much force is needed to deform the spring. Because if we apply more force than what the spring can handle, then it will lose the property to exhibit SHM any more.

K=−F * x

K=−Fx

Its unit is N/m (Newton per metre).