# GetDynamicFriction(int)

> Get the value of the dynamic friction for a specified contact point in this contact pair.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public float GetDynamicFriction(int i)
```

### Parameters

**** (\[int]\(https\://learn.microsoft.com/dotnet/api/system.int32)): Index of the contact point.

### Returns

| Type                                                          | Description                   |
| ------------------------------------------------------------- | ----------------------------- |
| [float](https://learn.microsoft.com/dotnet/api/system.single) | Dynamic friction coefficient. |

### Remarks

Dynamic friction slows down bodies that are sliding over other bodies.

Normally, it is between 0 and 1.