# ImpulseSum

> Total impulse sum of the pair.

## Definition

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

> **Warning:**
>
> **Deprecated.** Please use ContactPair.impulseSum instead.
>
> **Upgrade to** [ContactPair.impulseSum](/engine/6000.0/script-reference/unityengine/contactpair/impulsesum-1.md)

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

### Remarks

Equivalent to [Collision.impulse](/engine/6000.0/script-reference/unityengine/collision/impulse.md).