How to rotate a node based on the speed

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:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By ahmadred

I am trying to rotate an arrow based on the speed of the node. I need the arrow to rotate slower the faster the arrow is going.

extends RigidBody2D

export var impulse = 1500
var velocity = Vector2(0,0)


func _ready():
	apply_impulse(Vector2(0,0), Vector2(impulse,0))
	pass
	
func _process(delta):
	velocity = get_linear_velocity()
	pass

func _physics_process(delta):
	if rad2deg(rotation) < 90 && rad2deg(rotation) > -90:
		set_angular_velocity(velocity.x/1000)  #this is just reducing the value
	else:
		set_angular_velocity(0)
	$debugBox.text = String(rad2deg(rotation))
	pass

Basically when the speed is at 1000 I want to rotation to be at 0.01, and when the speed is at 1 i want to rotation speed to be around 10.