Acceleration Counter Script | One-Second Delay on player's Velocity.magnitude?

I wanted to make an acceleration counter that shows the player's acceleration especially when falling or speeding up. I was thinking of having the player's Velocity.magnitude minus the Velocity.magnitude 1 SECOND AGO. This requires me to add a delay of 1 second on a while loop. Is there a way to delay the Velocity.magnitude reading by 1 second after the player moves?

math.randomseed(tick())
wait()

boop = game.Players.LocalPlayer
if boop.Character then
player = boop.Character
end


while true do			
	a = math.floor((((player.Head.Velocity.magnitude)-(--[[Velocity 1 second ago]])*2)*100))/100
	script.Parent.Text = a .. " studs/s^2"
	wait()
end 

Something like...

repeat wait() until game.Players.LocalPlayer.Character

game.Players.LocalPlayer.Character.Changed:connect(function()
	wait(1)
	a = math.floor((((player.Head.Velocity.magnitude)-(--[[Velocity 1 second ago]])*2)*100))/100
	script.Parent.Text = a .. " studs/s^2"
end)

...?