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NRC 1243

NEWTONS LAWS


Newton’s laws of motion are three physical laws that form the basis for classical mechanics. theydescribe the relationship between the forces acting on a body and its motion due to those forces. they have been expressed in several different ways over nearly three centuries,[1] and can be summarized asfollows:
First law: if an object experiences no net force, then its velocity is constant: the object is either at rest (if its velocity is zero), or it moves in a straight line with constant speed (ifits velocity is nonzero).[2][3][4]
Second law: the acceleration a of a body is parallel and directly proportional to the net force f acting on the body, is in the direction of the net force, and isinversely proportional to the mass m of the body, i.e., f = ma.
Third law: when a first body exerts a force f1 on a second body, the second body simultaneously exerts a force f2 = −f1 on the firstbody. this means that f1 and f2 are equal in magnitude and opposite in direction

the three laws of motion were first compiled by sir Isaac newton in his work philosophiænaturalis principiamathematics, first published in 1687.[5] newton used them to explain and investigate the motion of many physical objects and systems.[6] for example, in the third volume of the text, newton showed that theselaws of motion, combined with his law of universal gravitation, explained kepler's laws of planetary motion.
QUESTIONS:
1. WHAT IS THE DIFFERENCE BETWEEN THE FIRST NEWTON’S LAWS AND THE SECOND ONE?2. WHICH ARE THE THREE NEWTON’S LAWS?
























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Newton LEYES


Leyes de Newton del movimiento son tres leyes físicas que constituyen la base dela mecánica clásica. Que describen la relación entre las fuerzas que actúan sobre un cuerpo y su movimiento debido a estas fuerzas. Que se han expresado en varias maneras diferentes a lo largo de...