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# Newton's Three Laws of Motion in a Car Accident

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## Jocelin Garcia

on 2 November 2012

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#### Transcript of Newton's Three Laws of Motion in a Car Accident

Newton's Three Laws of Motion First Law: a object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Second Law: pertains to the behavior of objects for which all existing forces are not balanced. Third Law: for every action there is an equal and opposite reaction. The First Law Inertia is the resistance an object has to a change in its state of motion. If you crash your car into something, your body will resist the change in motion and, unless something else stops it first, your body will crash into the object at the same speed that the car crashed into the object.Seatbelts safely provide an outside force that can stop or slow down your body when the car stops or slows down airbags work by increasing the time of impact and decreasing the force of impact thus stopping you
from getting hurt and being killed. The Second Law The force that acts on a body is directly proportional to the rate at which that body is accelerating. The constant of proportionality is the body’s mass, therefore mathematically, F = ma, where F is the force acting on the body, m is it’s mass, and a is it’s acceleration.The car you’re in is accelerating and then it hits another vehicle. You weren’t wearing a seat belt so you continue to obey Newton’s first law and you continue moving, and hit the windscreen. The Third Law For every action, there is an equal and opposite reaction.The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. when you drive the action force is the pushing against the road and the reaction is the road pushing against the tires.When a car hits a person, the person hits the car. When a car hits a telephone pole the pole hits the car. By: Jocelin Garcia :) Extra Facts Sir Isaac Newton is one of the most influential scientists of all time.
He came up with numerous theories and contributed ideas to many different fields including physics, mathematics and philosophy.
Newton's second law of motion is often called "the law of inertia". Sir Isaac Newton Facts: Biography

Birth: 25 December 1642 (4th of January 1643, as per the Gregorian calendar)

Birth Place: Woolsthorpe-by-Colsterworth, a small village in the county of Lincolnshire, England

Religious Inclination: Newton was adevout Christian, but he supported Arianism in his later years.

Fields: Mathematics, physics, astronomy, theology, alchemy, natural philosophy Sir Isaac Newton The Third Law
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