How to push NPCs away from the player?

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#1

How to push NPCs away from the player? I made a murder script from the back of an NPC. I want the NPC to push away from the player a little at the end. How can i do this?

local TCharacter = Target.Character
local THumanoid = TCharacter and TCharacter:FindFirstChild("Humanoid")
local TRootPart = TCharacter and TCharacter:FindFirstChild("HumanoidRootPart")
local FightTrigger = TRootPart
BHumanoid.Touched:Connect(function(hit)
	if hit.Name == "FinisherHitBox" then 
		local lookat = CFrame.lookAt(BRootPart.Position, TRootPart.Position) 
		BRootPart.CFrame = lookat
		local kilng2track = THumanoid:LoadAnimation(killed)
		kilng2track:Play()
		kild1track:Play()
		TRootPart.CFrame = BRootPart.CFrame * CFrame.new(0,0,-1.2)
		BRootPart.Anchored = true
		TRootPart.Anchored = true
		kild1track.Stopped:Wait()
		BRootPart.Anchored = false
		TRootPart.Anchored = false
	end
end)
#2

apply a body mover to the root part of the npc, like linearvelocity or bodyvelocity

#3

If it’s not difficult, can you give me an example of how to do this?

#4 
local bv = Instance.new("BodyVelocity")
bv.MaxForce = Vector3.new(math.huge, 0, math.huge)
bv.Velocity = Direction * 10 -- replace direction with something like the players HumanoidRootPart.CFrame.LookVector and the 10 with the amount of force (just a number)
bv.Parent = NpcHumanoidRootPart -- replace with the root part of the npc
game.Debris:AddItem(bv, .2) -- replace .2 with the duration
#5 
local att = Instance.new("Attachment", hrp) -- replace hrp with NPC HumanoidRootPart
		att.Axis = Vector3.new(0,0,-90)
		local vel = Instance.new("LinearVelocity")
		vel.VelocityConstraintMode = Enum.VelocityConstraintMode.Line
		vel.LineDirection = hrp.CFrame.LookVector -- replace with players HumanoidRootPart.CFrame.LookVector
		vel.LineVelocity = 100 -- replace 100 with amount of force
		vel.RelativeTo = Enum.ActuatorRelativeTo.Attachment0
		vel.Attachment0 = att
		vel.MaxForce = math.huge
		vel.Parent = hrp
        game.Debris:AddItem(att, .2) -- replace .2 with duration
        game.Debris:AddItem(vel, .2) -- keep the same duration as the previous
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