Question

ry is riding in a car when the driver suddenly slams on the brakes. mary is jerked forward out of her seat. this is an example of which law of motion? 2nd law 3rd law 1st law

Explanation:

Newton's 1st Law (Law of Inertia) states that an object in motion stays in motion with the same velocity unless acted upon by a net external force. When the car brakes, Mary (in motion with the car) tends to stay in motion due to inertia, causing her to jerk forward. The 2nd Law relates to force, mass, and acceleration ($F = ma$), and the 3rd Law is about action - reaction pairs, so this scenario fits the 1st Law.

Answer:

1st Law