# friction

> Coefficient of friction.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public float friction { get; set; }
```

### Remarks

Friction is used to control how a collision response reduces velocity. A value of zero indicates no friction at all while higher values produce increasing friction.

**Note:** Both Static and Dynamic friction are supported, and this value applies to both types.