Roblox Physics Stopping When Part Stops

Hey Builders.

This is one of my first build project where it involves more build and less scripting and I have some troubles on my end.

I am making a game where the player pushes a ball up a hill with obstacles to help them push the ball up.

I don’t know if this was intended or if this is a bug.

My problem is when a part stops, at like a corner, and has its velocity at 0, it makes some interesting interactions with other parts when they, in my case, a tweening part.

Here is my script for the tweening piston :

local tween = game:GetService("TweenService")
local tween1 = tween:Create(script.Parent,,Enum.EasingStyle.Linear,Enum.EasingDirection.InOut),{Position =, 141.698, -39.783)})
local tween2 = tween:Create(script.Parent,,Enum.EasingStyle.Linear,Enum.EasingDirection.InOut),{Position =, 123.766, -39.783)})

while wait(3) do

It’s pretty basic. But I’m pretty sure the problem is involved in the actual physics itself.

Video of it working(notice how I have to move the ball for it to work):

Video of it not working :

Thoughts and feedback are greatly appreciated!

1 Like

Roblox physics just suck man, oops I mean just code the ball to tween with the lift.

I just removed the lift and used a ramp instead but I think that would have worked.

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