Newton’s Laws Essay – Seat Belts (Social-Health _ Safety) - Mr Mac - annotated (1)

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Newton’s Laws Essay – Seat beltsIntroductionEver since the invention of motor vehicles there have always been road accidents due to faulty parts, badly maintained vehicles, poor driving or collisions with other vehicles or objects. This has created a problem in that many hundreds of thousands of people worldwide are injured or killed in these road accidents annually. Last year in the UK alone there were 1,713 fatalities resulting from rad traffic accidents (Annual Road Traffic Fatalities, 2014). As a result steps have been takes to reduce the number of injuries and fatalities by a variety of means including implementing laws and imposing fines on drivers breaking road traffic laws, or driving in an unsafe manner, as well as installing safety devices to vehicles such crumple zones, increased tyre traction, airbags and seat belts. These safety precautions have reduced the total number of fatalities and injuries significantly over the years and thus have become very important part of road traffic safety in our society. This essay will focus on the seat belt. Newton’s Laws and Seat beltsAccording to MacIntyre (2014), Newton’s first law states that ‘an object will remain at rest, or travel at a constant speed in a straight line, unless acted upon by an unbalanced force.’ This is also called the law of inertia, which means the resistance of an object to a change in its motion. This means that if a car is involved in a crash and is stopped by an unbalanced force, e.g. hitting a wall, a person not wearing a seat belt is not attached to the car and so is not brought to a stop. They keep moving at the same speed and in the same direction as the vehicle was previously until they hit the dashboard or windscreen, or in some cases go through the windscreen and hit the road, causing serious injury or death. Seat belts attach the person to the car, which prevents the person in the vehicle from continuing in motion and injuring themselves. However, this sudden stop could also cause serious injury so seat belts are also designed to bring the person to a stop more gradually. Most vehicles use 3-point seat belts (show right), which cover the torso the pelvis and the shoulders. (en.wikipedia, 2013) This is to allow more body coverage so that in an event of a car crash, the impact of the seat belt is not focused on one part of the body and rather is spread along the anterior,

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