# impulse

> The impulse applied to this contact pair to resolve the collision.

## Definition

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

```csharp
public Vector3 impulse { get; }
```

### Remarks

To work out the force applied you can divide the impulse by the last frame's fixedDeltaTime.