How Can I Stop The Physics of Another Player?

I was trying to do a script where a player can drag another player using a rope, everything worked as intended except for one part, the player's physics. Is there a way to change the player's state in a way where the player can feel like a dead person but not necessary be dead. The best results that i got is by enabling the platformstand but even then it doesn't feel the way it should.

This is the local script(just in case):

local uis = game:GetService("UserInputService")
local grab = false

uis.InputEnded:Connect(function(i, gpe)
    if i.KeyCode == Enum.KeyCode.Z and gpe == false then
        if grab == false then
            grab = true
            return
        end
        if grab == true then
            grab = false
            return
        end
    end
end)

spawn(function()
    script.Parent.Humanoid.Touched:Connect(function(hit)
        if grab == true then
            if hit.Parent:FindFirstChild("Humanoid") ~= nil then
                print("got you")
                game:GetService("ReplicatedStorage"):WaitForChild("just because"):FireServer(hit)
                grab = false
                return
            end
            if hit.Parent:FindFirstChild("Humanoid") == nil then
                grab = false
                print("Mission Failed, We Will Get Him Next Time")
                return
            end
        end
    end)
end)

This is the script(just in case):

local reps = game:GetService("ReplicatedStorage")
local jb = reps:WaitForChild("just because")

jb.OnServerEvent:Connect(function(player, hit)
    hit.Parent.Humanoid:ChangeState(16)
    hit.Parent.Humanoid.PlatformStand = true
    local weld = Instance.new("RopeConstraint")
    weld.Name = "GOTYOU"
    weld.Parent = player.Character.RightHand
    weld.Attachment0 = player.Character.RightHand.RightGripAttachment
    weld.Attachment1 = hit.Parent.Head.NeckRigAttachment
    weld.Length = 10
    weld.Visible = true
end)