# llGetAccel

*LSL function*

```lsl
vector vector llGetAccel();
```

- Returns: `vector`
- Energy: 10

Returns a vector representing the acceleration of the object in the region's frame of reference.

Returns a [vector](https://wiki.secondlife.com/wiki/vector) that is the acceleration of the object in the [region](https://wiki.secondlife.com/wiki/Viewer_coordinate_frames#region) frame of reference.

```lsl title="How to use" frame="terminal"
vector result = llGetAccel();
```

## Caveats

- Returns [ZERO_VECTOR](/constants/ZERO_VECTOR/) in attachments regardless of the avatar's acceleration.
- Returns [ZERO_VECTOR](/constants/ZERO_VECTOR/) in child prims regardless of the linkset's acceleration.

## Examples

<details open>
<summary>Example 1</summary>

```lsl
//A very simple (and not very effective) way of keeping a physical object in place.
//If the object is moving when the script is put in the object, then the object will continue to move, so long as it doesn't accelerate.
//If you ever want to actually stop an object, use llMoveToTarget(llGetPos(), .1)
default {
    moving_start(){
        vector ac;
        // Go forever
        while(llVecMag(ac = llGetAccel()) > .001) { //We're accelerating...
            llApplyImpulse(-ac, 0); //Slow us down.
        }
    }
}
```

</details>

## See also

### Functions

- [llGetOmega](/functions/llGetOmega/)
- [llGetVel](/functions/llGetVel/)
- [llGetTorque](/functions/llGetTorque/)
- [llGetMass](/functions/llGetMass/)
- [llGetForce](/functions/llGetForce/)
- [llSetForce](/functions/llSetForce/)
- [llSetTorque](/functions/llSetTorque/)
- [llSetForceAndTorque](/functions/llSetForceAndTorque/)

---

*Source: [LlGetAccel](https://wiki.secondlife.com/wiki/LlGetAccel) on the Second Life Wiki. Content from the Second Life Wiki article LlGetAccel (revision 1194139, 2015-01-22), CC BY-SA 3.0.*

---

From lsl.dev: https://lsl.dev/functions/llGetAccel/