Newton's Second Law states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of an object. Basically, an object with a greater mass will have less acceleration, but a greater force and impact. An object with a less amount of mass will have more acceleration,but not as much impact. So, for an object with mass, the net force on the object is equal to the mass times the object's acceleration. What does acceleration even mean? To understand Newton's Second Law fully, you have to know what acceleration means. Acceleration is the change in an object's motion or direction over an amount of time.
Based Off Of Newton's Second Law, Should You Where a Seat Belt?
Of course. The more acceleration you have, the more likely you will launch forward when the car stops. Your acceleration will keep you moving forward, which also has to do with inertia. If you have a greater mass, you may not get as injured in a car crash when not wearing a seat belt because you don't have as much acceleration as someone with a smaller mass does.
This shows what will happen when you do not put on your seat belt when in the car. Plus, the more acceleration you have, the harder you will be thrown forward.