SOCRATIVE EXERCÍCIOS PARTE 2

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FACULDADE ANHANGUERA DE JACAREÍ 
 
 
 
 
 
 
 
 
 
 
ENGENHARIA CIVIL 5º SEMESTRE 
 
SOCRATIVE – PARTE 2 
EXERCÍCIOS PARA ENTREGAR 
RESISTENCIAS DOS MATERIAIS 
 
 
PROFESSOR EDUARDO ROMÃO 
 
 
 
ALUNO 
EDUARDO SANTOS MIGUEL 
RA: 0060583029 
 
 
 
 
 
 
 
JACAREÍ 
15/09/2017 
 
1
 
 EXERCÍCIO 1 
 
Duas forças P e Q são aplicadas no ponto A de um suporte tipo gancho. 
Sabendo que P = 266 N e Q = 110 N, determine graficamente a intensidade, a 
direção e o sentido da resultante usando: 
 
 
 
 
 
 
 
 
 
 
a) 302,8 N 
 
b) 290,7 N 
 
c) 340,8 N 
 
d) 360,3 N 
 
e) 300,2 N 
 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Ler o enunciado e utilizar o software LABFISICA para resolver. Apontar a 
alternativa correta abaixo 
 
Resposta correta: 
 
302,8 N 
 
Explicação: 
 
Mesmo se tenha errado, é importante fazer os exercícios para conferência. 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
 
 
2
 
 EXERCÍCIO 1 
 
Duas forças P e Q são aplicadas no ponto A de um suporte tipo gancho. 
Sabendo que P = 266 N e Q = 110 N, determine graficamente a intensidade, a 
direção e o sentido da resultante usando: 
 
 
 
 
 
 
 
 
 
 
 
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4
 
 EXERCÍCIO 2 
 
Determine os componentes x e y de cada uma das forças indicadas. 
 
 
 
 
 
 
 
 
 
 
 
 
a) 203,042 N 
 
b) 300,030 N 
 
c) 251,065 N 
 
d) 248,078 N 
 
e) 320,278 N 
 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Aplicar o software FISICALAB no sistema existente e determinar a resultante. 
 
Resposta correta: 
 
251,065 N 
 
Explicação:Importante: a montagem em relação ao ponto será importante para a 
resposta. 
 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
5
 
 EXERCÍCIO 2 
 
Determine os componentes x e y de cada uma das forças indicadas. 
 
 
 
 
 
 
 
 
 
 
 
 
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7
 
 EXERCÍCIO 3 
 
Dois cabos estão ligados em C e são carregados como mostra a figura. 
Determine a tração: 
 
a) No cabo AC; 
 
b) No cabo BC. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
a) AC = 449.693 N ; BC = 362.352 N 
 
b) AC = 439.693 N ; BC = 326.352 N 
 
c) BC = 362.352 N; AC = 439.693 N 
 
d) AC = 493.693 N ; BC = 362.352 N 
 
e) AC = 409.693 N ; BC = 406.352 N 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Utilizar o software FISICALAB para determinar as reações AC e BC 
 
Resposta correta: 
 
AC = 439,693 N BC = 326,352 
 
Explicação: 
 
Atenção à trigonometria, resolução de sistemas lineares de duas equações e 
duas incógnitas. 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
8
 
 EXERCÍCIO 3 
 
Dois cabos estão ligados em C e são carregados como mostra a figura. 
Determine a tração: 
 
a) No cabo AC; 
 
b) No cabo BC. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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1
0
 
 EXERCÍCIO 4 
 
Duas forças paralelas de 60 N são aplicadas a uma alavanca como 
mostrado na figura. Determinar o momento do binário formado pelas duas forças: 
 
a) Resolvendo para cada componente horizontal e vertical e adicionando os 
momentos dos dois binários resultantes; 
 
b) Usando a distância perpendicular entre as duas forças; 
 
c) Somando os momentos das duas forças em relação ao ponto A. 
 
a) MA = 0.0000 N × m; FA = 12.389 N 
 
b) MA = 12.389 N × m; FA = 0.000 N 
 
c) MA = 48.852 N × m; FA = 100.000 N 
 
d) MA = – 12.389 N × m; FA = 0.000 N 
 
e) MA = 0.0000 N × m; FA = – 12.389 N 
 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Determinar às reações e o momento no ponto A com o software FISICALAB. 
 
Resposta correta: 
 
MA = – 12.389 N × m; FA = 0.000 N 
 
Explicação: 
 
Observar o sentido do giro e decomposição das forcas são as bases desse 
exercício. 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
 
 
 
 
 
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 EXERCÍCIO 4 
 
Duas forças paralelas de 60 N são aplicadas a uma alavanca como 
mostrado na figura. Determinar o momento do binário formado pelas duas forças: 
 
a) Resolvendo para cada componente horizontal e vertical e adicionando os 
momentos dos dois binários resultantes; 
 
b) Usando a distância perpendicular entre as duas forças; 
 
c) Somando os momentos das duas forças em relação ao ponto A. 
 
 
 
 
 
 
 
 
 
 
 
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3
 
 EXERCÍCIO 5 
 
Usando o software MDSOLIDS, informar os esforços sobre as vigas 
BE, AD e EF. 
 
 
 
 
 
 
 
 
 
 
 
a) BE = 10.800; AD = 4.500; EF = 26.584,61 
 
b) BE = – 10.800; AD = – 4.500; EF = – 26.584,61 
 
c) BE = – 10.800; AD = 4.500; EF = 26.584,61 
 
d) BE = 10.800; AD = – 4.500; EF = – 26.584,61 
 
e) BE = 10.800; AD = 4.500; EF = 26.584,61 
 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Usando o software MDSOLIDS, informar os esforços sobre as vigas 
BE, AD e EF. 
 
Resposta correta: 
 
BE = 10.800; AD = 4.500; EF = 26.584,61 
 
Explicação: 
 
Atentar com as barras e o sentido de aplicação das cargas. 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
 
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4
 
 EXERCÍCIO 5 
 
Usando o software MDSOLIDS, informar os esforços sobre as vigas 
BE, AD e EF. 
 
 
 
 
 
 
 
 
 
 
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6
 
 EXERCÍCIO 6 
 
Utilizar o software ONLINE 2D TRUSS SOLVER e informe as reações da 
barra AE. 
 
 
 
 
 
 
 
 
 
 
a) BC = – 16.28 kN; BD = – 13,6 kN 
 
b) BC = 16.28 kN; BD = – 13,6 kN 
 
c) BC = 16.28 kN; BD = 13,6 kN 
 
d) BC = – 16.28 kN; BD = 13,6 kN 
 
e) BD = – 13,6 kN; BD = – 16.28 kN 
 
 
 REPOSTA QUE APARECE NO EXERCÍCIO: 
 
 Certo! 
 
Pergunta: 
 
Utilizar o software ONLINE 2D TRUSS SOLVER e informe as reações da 
barra AE. 
 
Resposta correta: 
 
BC = – 16.28 kN; BD = 13,6 kN 
 
Explicação: 
 
Importante: a montagem em relação ao ponto será importante para a 
resposta. 
 
 REPOSTA CERTA DO EXERCÍCIO: 
 
 
 
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7
 
 EXERCÍCIO 6 
 
Utilizar o software ONLINE 2D TRUSS SOLVER e informe as reações da 
barra AE. 
 
 
 
 
 
 
 
 
 
 
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