Disable Momentum Scrolling on a MacBook Pro
Scrolling with momentum is a feature that is included with some MacBook Pro trackpads (and MacBooks thanks to a recent software update from Apple). The behavior is very much like the iPad or iPhone, when you are scrolling through anything you can give the trackpad a swipe and the speed of your gesture will determine the length of the scroll. I like this feature and keep it enabled on my MacBook Pro, but some people are bothered by it.
Disable scrolling with momentum on a MacBook Pro trackpad
* Open System Preferences
* Click on ‘Trackpad’
* Under “Two Finger” gestures, look for ‘Scrolling’
* Click on the pulldown menu and select ‘Scrolling without momentum”
* Close System Preferences
Changes will take effect immediately. You can enable the momentum scrolling by simply reversing the setting to ‘with momentum’ and your setting will be back to the default. Some people call this feature ‘intertia scrolling’ or ‘inertial scrolling’ but Apple calls it ‘scrolling with momentum’ within the System Preferences, making it the proper description.