If the car is moving at a constant velocity, no force is acting on it therefore, there should be no arrows.
According to Newton's first law of motion which is also called the law of inertia, a body will remain at rest or in a state of uniform motion unless it is acted upon by a net force.
A car that is moving at constant velocity is in a state of uniform motion and this will not change unless the car is acted upon by a net force. No net force is acting on the car as long as it remains in a state of uniform motion hence the diagram is wrong. There should be no forward arrow in the diagram. The forces acting on the car are exactly balanced.
Learn more: https://brainly.com/question/461254
