# The Physics of Car Safety Systems Essay

1105 Words Jun 28th, 2013 5 Pages
The Physics behind Car Safety Systems
By changing an object’s momentum, we are able to move it either faster or slower, and eventually to a halt, depending on the amount, direction, and magnitude of the force that acts upon the object. By applying this aspect on a car’s safety systems, we are able to either reduce the risks of injuries as the results of a crash, or to avoid a crash completely. It is with this principle that seatbelts, crumple zones, air bags, and braking systems, among other features, are able to save us from such unfortunate events.
Seatbelt – an active safety feature
In America alone, seatbelts have saved an approximate of 13,000 lives each year. Furthermore, an estimate of 7,000 fatalities could have been helped if
…show more content…
Without lamination, the glass would shatter just as a window would. The glass layers apply force to the plastic, which then applies an equal amount of force on them. This force holds together the shards, making them stick with the plastic. By keeping them from flying off, the momentum of the glass shards is reduced to minimum amounts, keeping the passenger safe from the shards.
Airbags – active safety features.
Airbags has, statistically, reduced the chances of morality in accidents involving cars by as much as thirty percent. Airbags are commonly located on steering wheels, in front of passenger seats, on the seats themselves, in the doors, the knee areas, and even outside, near the windshields, to partially protect pedestrians who may have been hit by the vehicle. As mentioned, a person or object involved in a crash would continue to move at the same velocity unless there is unbalanced force acting on the object for an extent of time. This force, in this case, is supplied by the airbags. By Newton’s second law of motion (for every action there is an equal and opposite reaction), when a person exerts their velocity on an airbag, the airbag would exert an equal amount of force against the person’s velocity. This gradually decreases the person’s velocity and momentum, which in result blunts the collision and risks of death or physical injury.
Crumple Zones – active safety features
Crumple

## Related Documents

• ###### Safety Assessment Of Autonomous Cars Using Verification Techniques

6. Althoff, M.; Stursberg, O.; Buss, M. Safety Assessment Of Autonomous Cars Using Verification Techniques. 2007 American Control Conference. 2007. This paper makes the assertion that since passenger safety is of utmost importance when dealing with autonomous cars, any safety measures should only be cleared if it is guaranteed to work. On the road, it is impossible for an autonomous car to be able to predict (with certainty) how the given scenario will unfold. This leads to the vehicle having to…

Words: 1136 - Pages:
• ###### Essay Design And Installation Of Elevator

Elevators fall under CSI division 14 in Conveying System with specification 14-20-00 for elevators. Elevators became more prevalent in the early 19th century when steam power was being first introduced, but elevators have been in existence for hundreds of years. Since then, elevators have become far more advanced with many different types of designs that excel at different purposes in providing transportation quickly to different floor levels. The creation of elevators has allowed some of the tallest…

Words: 1833 - Pages: 8
• ###### Essay The Evolution Of The Helmet

has remained at the top of European viewing. The pinnacle of all racing, Formula One consists of aerodynamic cars built for speed and defying laws of physics. Since these cars achieve such great speeds, an upwards maximum of 225.1 miles-per-hour as recorded by Mercedes driver Lewis Hamilton in Mexico October of last year (Drivers 1), it comes as no surprise that these cars feature many safety precautions, one such being the helmet. Throughout history, the significance of advanced technology in the…

Words: 1344 - Pages: 6
• ###### Essay Science Is A Key Element Of New Technology

accomplishment in other directions can guarantee the health, success, and security of humankind. Science is an essential means of satisfying society’s expanding and never-ending needs and wants. It affects healthcare, food production, education, shelter, safety, energy conservation, and the overall happiness of humankind (Krieger). Different products and services are being created every day to fulfil new needs and desires. The evolution of transportation is a prime example. In the 18th century, the only…

Words: 1679 - Pages: 7
• ###### Electrical Engineering: Changing Society One Product At a Time

are most influential on in society include computer engineering, communications, software and electronic systems. Within each of these fields are different characteristics that make each of them unique fields that help the others expand. For example, consider electronic systems and computer engineering. An electronic system has an aspect of computer engineering in it, where electronic systems engineers develop circuits and hardware for computers. The better that they make these devices the better…

Words: 2451 - Pages: 10
• ###### Essay on What Is Ubiquitous Computing ?

. Now I am ready to go to the work. Just one "I'm ready" and my car is automatically comes to my house doors. I get in to my car and feel myself in a new computer world of cars. I just need to say a destination, even "to my office", is enough. Now I'm in the office ,everything is ready for my appearance : 5 minutes after my command ,all these new friendly group of computers  embedded into fridges,washing maching, cooling system, door locks, furniture works together are ready to make your appearance…

Words: 892 - Pages: 4
• ###### The Crisis Of Global Climate Change Looming Over The Modern World

scientists and engineers have been working hard on ways to lessen human impact on the climate. One of the most important ways to do that is by reducing and eventually eliminating the greenhouse gas emissions issued by fossil fuel driven vehicles such as cars, trains and planes. Electric vehicles have been around for a few years now but their limitations like short travel range and long charging times have limited their appeal to the mass market. Wireless charging for electric vehicles could dramatically…

Words: 1594 - Pages: 7
• ###### Essay Sports : Sports And Sports

involves a type of ball and two teams going head to head. But NASCAR is a different kind of sport, it is a motorsport. Forty purpose-built race cars with a team of pit crews, engineers, and mechanics battle every week on a variety of racetracks across the country. Just like any other sport, NASCAR has its own rules of competition, scheduled events, a points system, and a champion crowned at the end of the season. And just like many other sports, the possibility of player injury is also very real. In fact…

Words: 2034 - Pages: 9
• ###### The Use of Electricity and Magnetism in Everyday Life Essays

Jamie Sivertsen Physics 2 Instructor Eugine De Silva March 25, 2012 Project #1 The Use of Electricity and Magnetism in Future Transportation The dependence of our society on electricity is extremely obvious, but at the same time its easy to forget how dependent we actually are on it. Electricity plays a huge role in modern society that we do not even think about it. We take advantage of all the appliances at home and at the office, all the technologies we use to communicate, all…

Words: 1562 - Pages: 7
• ###### Maglev Trains And The Technology Behind Them Essay

permeability of the medium between the magnets. By using some figures from a Physics World magazine is possible to see why magnetic levitation is possible. By using them we can find the size of the magnet that is needed to levitate two people at 20mm. First to find the force we multiply the weight of two people at 70N each by the gravitational constant 9.8 and then multiply this figure by a safety factor of two we get 2744N. And is using the figures for a possible levitation…

Words: 3538 - Pages: 15