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Grammar PRaiser: Fixes for src/content/cookbook/animation/physics-simulation.md #4

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Grammar PRaiser: Fixes for src/content/cookbook/animation/physics-simulation.md #4

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10 changes: 4 additions & 6 deletions src/content/cookbook/animation/physics-simulation.md
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ This recipe uses these steps:
1. Set up an animation controller
2. Move the widget using gestures
3. Animate the widget
4. Calculate the velocity to simulate a springing motion
4. Calculate the velocity to simulate a spring motion


## Step 1: Set up an animation controller
Expand Down Expand Up @@ -223,10 +223,9 @@ Finally, update the `GestureDetector` to manage the animation controller:
child: Align(
```

## Step 4: Calculate the velocity to simulate a springing motion
## Step 4: Calculate the velocity to simulate a spring motion

The last step is to do a little math, to calculate the velocity of the widget
after it's finished being dragged. This is so that the widget realistically
The last step is to do a little math to calculate the widget's velocity after it finishes being dragged. This is so that the widget realistically
continues at that speed before being snapped back. (The `_runAnimation` method
already sets the direction by setting the animation's start and end alignment.)

Expand Down Expand Up @@ -279,8 +278,7 @@ onPanEnd: (details) {
```

:::note
Now that the animation controller uses a simulation it's `duration` argument
is no longer required.
Now that the animation controller uses a simulation, its `duration` argument is no longer required.
:::

## Interactive Example
Expand Down