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COLEGIO PREUNIVERSITARIO “R obert Letourneau” Primer Año Primer Año TEMA: ESTÁTICA Introducción: Hemos podido notar en el capítulo de Cinemática, que los cuerpos desc riben movimientos distintos, como son el M.R.U y el M.R.U.V., entre otros. Pero además de ello, si observamos a nuestro alrededor, encontramos que no todos los cu er pos se encuentran en movimiento mecánico, como por  ejemplo los puentes, el !luorescente, la pi"arra, etc. Como co nsecuenc ia de estas observaciones nos planteamos al #unas interro#antes como$ %&u' es lo que produce un movimiento$ %Por qu' al#unos cuerpos se encuentran en movimiento mecánico y otros no$ %Por qu' los cuerpos describen movimientos di!erentes$ Hace apro(imadamente tres si#los, el #ran !ísico y matemático in#l's )saac *e +t on - /0 1 -2023 con base en sus ob ser vaciones y las de otros cientí!icos, !ormul4 tres principios que son !undamentales pa ra contestar tales pre#untas y para la resoluci4n de otros problemas relacionados con los movimientos, y que reciben el nombre de 56eyes del movimiento7. 8stos princip ios constituy en los pilares de la mecán ica, y !uero n enunciados en la !amosa obra de *e+ton titulada principios matemáticos de la !iloso!ía *atural, publicada en -9. :e conocen tambi'n como primera, se#unda y tercera leyes de *e+ton, de acuerdo con el orden en que aparecieron en la obra citada. 8n este capítulo estudiaremos la primera y la tercera ley, que nos permitirán anali"ar el equilibrio de un cuerpo. 8n el si#uiente capítulo se estudiará la se#unda ley de *e+ton. Física Física 1

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