Sorry it's very long.

Safety belts protect people in cars in the event of an accident. Because of Newton’s Laws of Motion, when an impact causes the car to suddenly change its motion, if the people Safety belts protect people in cars in the event of an accident. Because of Newton’s Laws of Motion, when an impact causes the car to suddenly change its motion, if the people are not wearing a seat belt

1.The people in the car will move backwards.

2. The people in the car will come to a stop

3. The people in the car will continue to move in the same direction and at the same speed as before the impact.