According to Hooke’s law, the force required to compress or extend a spring is directly proportional to the distance it is stretched.
Formula of Spring Constant
The formula of spring constant is given as:
| Formula | F=-k x |
| SI unit | N.m-1 |
Where,
- F is the restoring force of the spring directed towards the equilibrium
- k is the spring constant in N.m-1
- x is the displacement of the spring from its equilibrium position