How would I stop a frictionless part from sliding down a slope?

[dthecoolest]

You can get the vector pointing downwards of the slope using cross product.

How to align part to surface normal

If you want to get the CFrame pointing downards of a slope you can use cross product. However keep in mind this only works if the slope is uneven and not perfectly flat or else the cross product will fail. local char = script.Parent local HRP = char:WaitForChild("HumanoidRootPart") local part =Instance.new("Part") part.Anchored = true part.Size = Vector3.new(2,1,5) part.CanCollide = false part.Parent = workspace part.FrontSurface = Enum.SurfaceType.Motor local downVector = -Vect…

Then you apply physics and calculate the gravity force downwards parallel to the slope. Or you could just apply anti gravity force.