The Physics of Car Collisions Essay -- Physics

Basic ConceptsIssac Newton was the root to state the concepts that are necessary to understanding the natural philosophy of collisions. His three rightfulnesss are used again and again in all told the fields of physicsNewtons 1st LawIn the absence of external ferocitys, an target area at rest remains at rest and an object in performance remains in motion with a constant velocity.This law erect be best observed in space, far from the somberness of a star or planet, where there is no friction or snap resistance. If, in the middle of deep space, you give a rock a little push, it will continue with the direction and velocity you gave it forever. The only office to stop it is to apply a force in the opposite direction. This law is not intuitive because we are surrounded by air and gravity - if we give a rock a little push on the surface of the earth, it wont travel far.Newtons 2nd LawThe acceleration of an object is straightway comparative to the net force acting on it and inversely proportional to its mass.This boils down to force equals mass times acceleration, F = ma. This little comparison turns out to be immensely useful, again and again. If you add together all the forces acting on an object, they equal the mass of the object (in kg) times the acceleration of the object (in m/sec2). Force is measured in newtons. iodine newton is the force required to accelerate a 1-kg mass to 1 m/sec2.Newtons 3rd LawThe force exerted by object 1 onto object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 onto object 1.This law appears to make little sense and idler be difficult to grasp. If you push on a brick wall, the wall is get-up-and-go back on you with an equal force. If the wall was not pushing back, therefore your hand wou... ... hammer hitting a concrete wall is to the highest degree 3,600,000.SourcesBarr, L.C. Safety Report. 1996. University of New Hampshire. 26, Nov. 2002. Borges, Danny. The Physics in Car Col lisions. 22, Nov. 2002. Braking Distance. 2002. University of Idaho. 26, Nov. 2002. Safety concomitant Sheet. 1999. Airbag Testing Technology, Inc. 26, Nov. 2002. Serway, Raymond A., and Robert J. Beichner. Physics for Scientists and Engineers, Fifth edition. Thomson Learning Inc. U.S.A., 2000.Toor, Amrit, Michael Araszewski and Ravinder Johal. Technical Assessment of Seatbelt habit and Effectiveness. 2000. Intech. 26, Nov. 2002.