# Sandbox.PhysicsGroup.ApplyAngularImpulse

```csharp
void ApplyAngularImpulse(Vector3 vel, bool withMass = False)
```

Adds given amount of angular linear impulse ([Sandbox.PhysicsBody.ApplyAngularImpulse](/api/Sandbox.PhysicsBody/ApplyAngularImpulse)) to all physics bodies in this group.

### Parameters

- `vel` (`Vector3`): Angular velocity to apply.
- `withMass` (`bool`), default `False`: Whether to multiply the velocity by mass of the [Sandbox.PhysicsBody](/api/Sandbox.PhysicsBody) on a per-body basis.

Declared in [Sandbox.PhysicsGroup](/api/Sandbox.PhysicsGroup).
Assembly: `Sandbox.Engine`.