Question

a person not wearing a seatbelt flies through a car window when someone slams on the breaks because the persons body wants to remain in continuous motion even when the car stops.
second law
first law
third law

Explanation:

Newton's First Law of Motion (Law of Inertia) states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. In the given scenario, when the car suddenly stops (due to braking - an external force acting on the car), the person (not wearing a seat - belt, so no external force acting on the person immediately) continues in their state of motion (because of inertia) and moves forward, potentially flying through the window.

Answer:

First Law