I'm not sure if the feature I want to activate is called Momentum. I want the cursor to continue moving in a direction like I'm pushing a ball. If I push the ball softy, it will continue moving a little bit after I lift my finger from the touch pad. If I push the ball harder, it will continue moving faster and further.
I have tried the command of the accepted answer of the following question, but that answer if for the scrolling Momentum and not for the cursor Momentum: How do I enable mouse momentum after release in kde/gnome/unity?
If we type: synclient | grep Momentum
, we can't see any related command to activate the Momentum feature.
I'm on Ubuntu 14.04LTS.
man synaptics
and see if it has an option for it there. e.g. 'CornerCoasting' means 'Enable edge scrolling to continue while the finger stays in an edge corner.'