Wall wont add velocity?

For context, i just want to fling a wall with the click of a GUI button, this is a script in serverscript service specifically reserved for Events For some reason, all it does is unanchor the peice and disable its script, nothing else happens. it also prints the text too which is weird, i also get no errors

    local ReplicatedStorage = game:GetService("ReplicatedStorage")

    ReplicatedStorage.FlingGroupWall.OnServerEvent:Connect(function(player)
        local Wall = game.Workspace.GroupInWall

        Wall.Anchored = false
        Wall.Script.Disabled = true
        wait(0.1)
        print("Wall Flinging")
            Wall.Attachment.LinearVelocity.VectorVelocity = Vector3.new(1000, 1000, 1000)
        wait(3)
        Wall.Attachment.LinearVelocity.VectorVelocity = Vector3.new(0, 0, 0)
        print("Wall Flung")
    end)