BodyPosition doesn't work when trying to move part?

I have a game, where there is a wave, I am trying to get the wave to move using body position, but it doesn't work. All that happens is, the wave falls because it's not anchored.

My script:

local Part = script.Parent
local newPos = Part.Position + Vector3.new(1500,0,0)
local Time = 10
local Increment = 0.5
local startWave = workspace:WaitForChild('startWave')
local Diff = newPos - Part.Position
local Mag = Diff.magnitude

function MovePart()
    script.Parent.BodyPosition.Position = Vector3.new(newPos)
    wait( (Time/Mag) * Increment )
end

startWave.Changed:Connect(MovePart)

My hierarchy, and my BodyPosition properties

Any help is appreciated, thanks. (There are no errors in console)