Force Constant of Spring

Force Constant of Spring

### Formula

$$F=kx$$

### Terminologies

- k → Spring constant.

- x → Extension or compression.

- F → Restoring force.

### SI Unit

$$Nm^{-1}$$

### Dimensions

$$[k]=[MT^{-2}]$$

### Conditions / Special Cases

- Larger k means stiffer spring.

- Spring force acts opposite to displacement.

### Usage

- Used in elasticity and oscillation problems.