RELATÓRIO DA CATAPULTA - 2ª PARTE
Autor: Física em Ação | Publicado: 2012-11-02T12:55:00-07:00



Faça
quantos lançamentos achara necessário e indique o resultado de dois deles na
tabela abaixo:



Experimento I



 

  
Faça um desenho mostrando o lançamento e respectivos
  pontos medidos.







TESTE 1










TESTE 2









 







 

  
Deslocamento 1

  
4m



  
Tempo 1

  
1,67s

  
Velocidade 1

  
2,39m/s

 

  
Deslocamento 2

  
5m



  
Tempo 2

  
1,78s

  
Velocidade 2

  
2,80m/s

 

  
Massa da Bolinha

  
0,05kg



  
Peso da Bolinha

  
0,40N

  
Aceleração da Bolinha

  
3,72m/s²

 

  
Quantidade de Movimento 1

  


0,11kg.m/s



  
Quantidade de Movimento 2

  


0,14kg.m/s

  


Impulso na Bolinha

  


0,03kg.m/s

 







 

  
Cálculos dos Deslocamentos:



&nbsp;DESLOCAMENTO 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;DESLOCAMENTO 2



&nbsp;△S1= S2 - S1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;△S2= S2 - S1



&nbsp;△S1= 4 - 0 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;△S2= 5 - 0

  



&nbsp;△S1= 4m &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;△S2= 5m





 




 

  
Cálculos das Velocidades e Aceleração:



&nbsp;V=&nbsp;△S&nbsp; &nbsp; &nbsp; V1= &nbsp;&nbsp;4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; V2= &nbsp; 5 &nbsp;



&nbsp; &nbsp; &nbsp; △t &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1,68 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1,78 &nbsp;&nbsp;

&nbsp;&nbsp;

&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; V1= 2,39M/S &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;V2= 2,80M/S







&nbsp;A=&nbsp;△V&nbsp; &nbsp; &nbsp;&nbsp;△v= v2 - v1&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;△t= t2 - t1

  



&nbsp; &nbsp; &nbsp;&nbsp;△t &nbsp; &nbsp; &nbsp;&nbsp;△v= 2,80 - 1,39 &nbsp; &nbsp;△t= 1,78 - 1,67



&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; △v= 0,41m/s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;△t= 0,11





&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; A= 0,41

&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;0,11&nbsp;



&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;A= 3,72m/s²



 


&nbsp;&nbsp;

 

  
Cálculos das Quantidades de Movimento.



&nbsp;Q= m.V &nbsp; &nbsp;Q1= 0,05.2,39 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Q2= 0,05.2,80



&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Q1= 0,11kg.m/s &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Q2= 0,14kg.m/s



 




 

  
Cálculo do Impulso:



&nbsp;I= Q2 - Q1



&nbsp;I= 0,14 - 0,11



&nbsp;I= 0,03kg.m/s





 


&nbsp;

Experimento II

Repita o experimento I e indique
os resultados na tabela abaixo. Não é necessário indicar o cálculo neste
exercício.






 

  
Deslocamento 1

  
3m



  
Tempo 1

  
1,11s

  
Velocidade 1

  
2,70 m/s

 

  
Deslocamento 2

  
5m



  
Tempo 2

  
1,75s

  
Velocidade 2

  
2,85 m/s

 

  
Massa da Bolinha

  
0,05Kg



  
Peso da Bolinha

  
0,40N

  
Aceleração da Bolinha

  
3,26 m/s²

 

  
Quantidade de Movimento 1

  


0,135Kg.m/s

  
Quantidade de Movimento 2

  


0,142Kg.m/s

  


Impulso na Bolinha

  


0,007Kg.m/s