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Steven López Marín
               9-3
        Rubilda Mosquera
           Tecnología
           21-08-2012
Institución Educativa La Gabriela
Desde el punto de vista técnico, la palanca es una
  barra rígida que oscila sobre un punto de apoyo
  (fulcro) debido a la acción de dos fuerzas contra
  puestas (potencia y resistencia). En los proyectos
  de tecnología la palanca puede emplearse para
  dos finalidades: Vencer fuerzas u obtener
  desplazamiento .
Desde el punto de vista tecnológico, cuando
  empleamos la palanca para vencer fuerzas
  podemos considerar en ella cuatro elementos
  importantes:
   Potencia (p) : Fuerza que tenemos que aplicar .
   Resistencia (r): Fuerza que tenemos que vencer; es
    la que hace la palanca como consecuencia de
    haber aplicado nosotros la potencia.
   Brazo De Potencia (BP): Distancia entre el punto en
    el que aplicamos la potencia y el punto de apoyo
    (fulcro).
   Brazo De Resistencia (BR): Distancia entre el punto
    en el que aplicamos alas resistencia y el fulcro.
Arquímedes, nació en el año 298 antes de Cristo y
   murió en el 212 antes de Cristo , fue el matemático
   e inventor más grande de los tiempos antiguos.



Fue creado en la época de la prehistoria.
La maquinas en juego
La maquinas en juego

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La maquinas en juego

  • 1. Steven López Marín 9-3 Rubilda Mosquera Tecnología 21-08-2012 Institución Educativa La Gabriela
  • 2. Desde el punto de vista técnico, la palanca es una barra rígida que oscila sobre un punto de apoyo (fulcro) debido a la acción de dos fuerzas contra puestas (potencia y resistencia). En los proyectos de tecnología la palanca puede emplearse para dos finalidades: Vencer fuerzas u obtener desplazamiento . Desde el punto de vista tecnológico, cuando empleamos la palanca para vencer fuerzas podemos considerar en ella cuatro elementos importantes:
  • 3. Potencia (p) : Fuerza que tenemos que aplicar .  Resistencia (r): Fuerza que tenemos que vencer; es la que hace la palanca como consecuencia de haber aplicado nosotros la potencia.  Brazo De Potencia (BP): Distancia entre el punto en el que aplicamos la potencia y el punto de apoyo (fulcro).  Brazo De Resistencia (BR): Distancia entre el punto en el que aplicamos alas resistencia y el fulcro.
  • 4. Arquímedes, nació en el año 298 antes de Cristo y murió en el 212 antes de Cristo , fue el matemático e inventor más grande de los tiempos antiguos. Fue creado en la época de la prehistoria.