Question

What is the scientific fact that lay behind a seat belt of a car

Answer 1

We use seat belt in a car to avoid the inertia of motion..

When we travel in a car and suddenly due to any reason the car stops then seat belt protect us to continue in the motion. so we use seat belt

thanks hope it helps you dear

Answer 2

To to control the motion of the upper body that is on the seat and our lower body is already in rest position that is leg to control our self body that are product with seat belt of car