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Objetivo deste experimento é encontrar diferentes centro de massa
posicionando uma haste de 040m , sobre um suporte em diferentes pontos,
com objetos de pesos variados. Utilizou-se para este experimento além dos
objetos citados acima um dinamômetro com 10 divisões , cada divisão
corresponde a 0,02N e incerteza de 0,01N. foram obtidos os valores de quatro
situações conforme dados abaixo.
1° situação
Fp da haste = 1,31N, com 0,40m e precisão de 0,02m
Localização do centro de massa
Xcm= 0,20m sendo o centro da haste 0
Fp1=0,1N na posição - 0,14m
Fp2=0,1N na posição - 0,14m
Foram obtidos os valores de torque utilizando o calculo T=F*d onde;
T1= 0,1*0,14=0,014Nm
T2= 0,1*0,14=0,014Nm
Conforme ilustração abaixo:
Desta forma mantêm-se o equilíbrio T=0
2° situação:
Centro de massa com peso somente do lado esquerdo:
A localização do Xcm= 0,20 m sendo o centro da haste 0
E Fp1= 0,4N foi posicionado 0,11m
T=0,4*0,11m=0,004Nm
Conforme ilustração abaixo.
3° situação:
Centro de massa com pesos do lado esquerdo e direito.
Xcm= 0,20m sendo o centro da haste 0
Fp1=0,59N localizado na posição 0,14m
Fp2=0,4N localizado na posição 0,20m
Fp3=1,08N localizado na posição 0,12m
T1=0,59*0,14=0,082Nm
T2=0,4*0,20=0,08Nm
T3=1,08*0,12=0,13Nm
Conforme ilustração abaixo:
4° situação:
Xcm localizado no ponto diferente de 0
Xcm=0,0325m
Fp1=0,22N localizado na posição 0,18m
T= 0,22*0,18=0,04Nm
Conforme ilustração abaixo;
Relatório
Laboratório de física
Experimento n° 4
Torque e centro de massa
Fatec Itaquera
Prof° Rogério
Disciplina: física
Aluno: Sergio Sanches
Aluno: Wellington Neris
Data: 17/11/14

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Relatório laboratório de física experimento 4

  • 1. Objetivo deste experimento é encontrar diferentes centro de massa posicionando uma haste de 040m , sobre um suporte em diferentes pontos, com objetos de pesos variados. Utilizou-se para este experimento além dos objetos citados acima um dinamômetro com 10 divisões , cada divisão corresponde a 0,02N e incerteza de 0,01N. foram obtidos os valores de quatro situações conforme dados abaixo. 1° situação Fp da haste = 1,31N, com 0,40m e precisão de 0,02m Localização do centro de massa Xcm= 0,20m sendo o centro da haste 0 Fp1=0,1N na posição - 0,14m Fp2=0,1N na posição - 0,14m Foram obtidos os valores de torque utilizando o calculo T=F*d onde; T1= 0,1*0,14=0,014Nm T2= 0,1*0,14=0,014Nm Conforme ilustração abaixo:
  • 2. Desta forma mantêm-se o equilíbrio T=0 2° situação: Centro de massa com peso somente do lado esquerdo: A localização do Xcm= 0,20 m sendo o centro da haste 0 E Fp1= 0,4N foi posicionado 0,11m T=0,4*0,11m=0,004Nm Conforme ilustração abaixo.
  • 3. 3° situação: Centro de massa com pesos do lado esquerdo e direito. Xcm= 0,20m sendo o centro da haste 0 Fp1=0,59N localizado na posição 0,14m Fp2=0,4N localizado na posição 0,20m Fp3=1,08N localizado na posição 0,12m T1=0,59*0,14=0,082Nm T2=0,4*0,20=0,08Nm T3=1,08*0,12=0,13Nm Conforme ilustração abaixo:
  • 4. 4° situação: Xcm localizado no ponto diferente de 0 Xcm=0,0325m Fp1=0,22N localizado na posição 0,18m T= 0,22*0,18=0,04Nm Conforme ilustração abaixo;
  • 5.
  • 6. Relatório Laboratório de física Experimento n° 4 Torque e centro de massa Fatec Itaquera Prof° Rogério Disciplina: física Aluno: Sergio Sanches Aluno: Wellington Neris Data: 17/11/14