REGRAS PARA RESOLVER OS PROBLEMAS DE ESTÁTICA.
Autor: PROFESSOR: CARLOS FILHO | Publicado: 2017-02-02T08:20:00-03:00


Curso Albert Einstein.

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“DUAS FORÇAS”

PASSO 01

Traçamos o
plano cartesiano e retiramos os dados da questão.

PASSO 02

Colocamos as
forças no plano cartesiano.

PASSO 03

Traçamos
retas paralelas as forças, onde elas se cruzarem, traçamos a força resultante.

PASSO 04

Escolhemos a
força fixa e circulamos.

PASSO 05

Movemos a
força não fixa para sua projeção.

PASSO 06

Hachuramos o
triângulo que vai ser usado para melhor visibilidade do problema.

PASSO 07

Prolongamos a
força fixa e colocamos o ângulo v entre o prolongamento da força fixa e a projeção da
força não fixa.

PASSO 08

Aplicamos a propriedade dos ângulos suplementares e
descobrimos o ângulo FFP .

PASSO 09

Colocamos no
triângulo os ângulos FFR &nbsp;e &nbsp;AF 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 

PASSO 10

Observamos
se algum ângulo do triângulo está entre duas forças conhecidas, se estiver
aplicamos a lei dos cossenos.

PASSO 11

Aplicamos a
lei dos senos.