How to use BodyForce properly?

So, I'm trying to make like a button that when pushed, will launch a little rocket through BodyForce.

local model = script.Parent

local button = model.Button
local cover = model.Cover
local rocket = model.Rocket

local opened = false

cover.ClickDetector.MouseClick:Connect(function() --don't mind this
	
	if opened then
		opened = false		
		
		print(opened)
		cover.Orientation = Vector3.new(-15, 0, 0)
		cover.Position = Vector3.new(250, 3.732, 249.871)
	else
		opened = true
		
		print(opened)
		cover.Orientation = Vector3.new(75, 0, 0)
		cover.Position = Vector3.new(250.1, 4.143, 250.434)			
	end	
end)

button.ClickDetector.MouseClick:Connect(function()
		print("pushed")

		local force = Instance.new("BodyForce", rocket)
		force.Force = Vector3.new(0,100,0)
		wait()
		force:Destroy()			
end)