SOLUCIONS 4 (PDF)




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Title: Microsoft Word - Documento5
Author: SARA ALVAREZ CANTERO

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SOLUCIONS  4  
MOVIMENT  CIRCULAR  
 
Sabem  el  període  del  carrousell.  Aplicam  la  seva  fórmula  de  definició:  
T=  2π/w  
8=2π/w  
8w=2  π  
w=2  π/8  
w=0,78rad/s  
 
V=R.w  è  Per  a  convertir-­‐ho,  hem  de  conèixer  el  radi.  
 
                           El  carroussell  és  un  cilindre(  baseècircumferència)  
Àrea  de  la  base=  π.R²  
 
60=  π.R²  
R²=  60/  π  
R=    √60/  π  
R=  4,37m.  
V=4,37.0,78rad/s  
 
V=3,41m/sè  Duu  una  velocitat  de  3,41m/s.  
 
 






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