Wearing your seat belt is legally required, and for good reason. Did you know that you’re 30 times more likely to be ejected from a motor vehicle during a crash if you’re not wearing a seat belt? Yeah, ejected. That’s a word that should only apply to missiles and DVDs, not people. Crashing through a windshield and onto the street makes surviving a crash unlikely, so it’s in everyone’s best interest to buckle up before every drive and practice some seat belt safety, whether you’re the driver or a passenger. See what good old Isaac Newton has to say about the physics involved.
Isaac Newton’s First Law of Motion
According to this law of physics, also known as the Law of Inertia, “An object at rest will remain at rest, and an object in motion will remain in motion (at a constant velocity), unless acted upon by an external force.” Sounds simple enough. Things don’t just start or stop moving on their own. They’re gonna keep doing their thing until something (a force) changes that. In the case of a vehicle, its movement is usually stopped by the friction of brakes.
Wear Your Seat Belt
Why are we bringing up the First Law of Motion in order to convince you to wear a seat belt? Because the Law of Inertia applies to you whenever you’re in a vehicle (also all the time, but that’s beside the point…). Your body is traveling at the same speed as the vehicle even though you’re just sitting on your butt. If the vehicle stops abruptly, whether it’s a hard stop or a car crash, your body will continue moving forward. Something’s gotta stop that motion. Do you want it to be a seat belt or or the windshield? Seat belts prevent excessive injury when your vehicle and your body need to slow down in a hurry. This applies whether you’re in the driver seat, passenger seat or if you’re a back seat passenger.
Seat Belt Safety for Kids
When you’re driving with a child passenger, there may be a few other factors you have to take into consideration to make sure they’re securely belted into their seats. As a starter point, kids under 13 should always ride in the back seat. Even with proper child restraints, kids are just too small to ride safely in the front seat. This is mostly because air bags aren’t meant for child passenger safety.
- Car seats: Up until age 2 kids should ride in a car seat facing the rear of the car. From age 2 to around 5 years old you can turn the car seat towards the front of the car.
- Booster seats: Once they hit around age 5, child passengers should use a belt-positioning booster seat. They should continue using a booster seat until a seat belt fits them properly.
- Seat belt: The recommended height for using a seat belt without any additional devices is 57 inches. The lap belt should lie flat against the child’s lap (not their stomach) and the shoulder belt should cross at their shoulder (not their neck). This means the child is also tall enough that the air bag will work as intended.
Putting on your seat belt may seem like a simple and sometimes pointless task, but we assure you that you’ll feel differently if you’re ever in a car accident. Choosing not to buckle up can result in some really serious injuries, or even a fatal injury. Not to mention, there are seat belt laws in place that could result in you having a chat with a law enforcement officer. If you’re the driver, have a seat belt policy in your car that you don’t start driving until all of your passengers are buckled up. Be smart. Wear a seat belt.