Question

which law of motion explains why you feel a force pushing you back into your seat when a car accelerates? a newtons second law b newtons third law c newtons first law

Explanation:

Newton's second law states that force ($F$) is equal to mass ($m$) times acceleration ($a$), or $F = ma$. When a car accelerates, the seat exerts a forward - acting force on you according to this law to make you accelerate with the car. Your body resists the change in motion initially, and you feel pushed back into the seat as the seat applies the necessary force for acceleration. Newton's first law is about inertia (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), and the third law is about action - reaction pairs.

Answer:

A. Newton's second law