---
title: "addAngularVelocity(_:for:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uidynamicitembehavior/addangularvelocity(_:for:)"
---

# addAngularVelocity(_:for:)

Adds a specified angular velocity to a dynamic item.

## Declaration

```swift
func addAngularVelocity(_ velocity: CGFloat, for item: any UIDynamicItem)
```

## Parameters

- `velocity`: The angular velocity, expressed in radians per second, that you want to add to the specified dynamic item. Default value is 0. Applying a negative value reduces the angular velocity by the specified amount.
- `item`: The dynamic item whose angular velocity you want to increase (or decrease).

## See Also

### Configuring a dynamic item behavior

- [addLinearVelocity(_:for:)](uikit/uidynamicitembehavior/addlinearvelocity(_:for:).md)
- [allowsRotation](uikit/uidynamicitembehavior/allowsrotation.md)
- [angularResistance](uikit/uidynamicitembehavior/angularresistance.md)
- [angularVelocity(for:)](uikit/uidynamicitembehavior/angularvelocity(for:).md)
- [linearVelocity(for:)](uikit/uidynamicitembehavior/linearvelocity(for:).md)
- [density](uikit/uidynamicitembehavior/density.md)
- [elasticity](uikit/uidynamicitembehavior/elasticity.md)
- [friction](uikit/uidynamicitembehavior/friction.md)
- [resistance](uikit/uidynamicitembehavior/resistance.md)
- [charge](uikit/uidynamicitembehavior/charge.md)
- [isAnchored](uikit/uidynamicitembehavior/isanchored.md)