How to mimic the momentum effect from Ice blocks

[Willsbr]

Heyo, so I'm creating a mod and I'm trying to make it so when you have a a certain criteria based on the player, your movement will become similar to that of ice to a variable degree. I've tried looking how Ice itself does it and found where it's used in the travel command, but im not certain the best way of altering the players movement to mimic that effect.  Any guidance would be greatly appreciated.